Assessment HISTOMTLE Flashcards
This type of epithelium lines most of the respiratory tract:
Simple squamous epithelium
Simple cuboidal epithelium
Simple columnar epithelium
Pseudostratified ciliated columnar epithelium
Pseudostratified ciliated columnar epithelium
Thyroid follicles are lined by this type of epithelium:
Simple squamous epithelium
Simple cuboidal epithelium
Simple columnar epithelium
Transitional epithelium
Simple cuboidal epithelium
It forms the linings of the urinary bladder, the ureters and part of the urethra (organs which are subject to considerable stretching):
Stratified squamous epithelium
Transitional epithelium
Stratified cuboidal epithelium
Stratified columnar epithelium
Transitional epithelium
Long, cylindrical and multinucleate, they have obvious striations, and can be controlled voluntarily:
Skeletal muscle
Visceral muscle
Cardiac muscle
Skeletal muscle
Uninucleate branching cells that fight tightly together at junctions called intercalated disks:
Skeletal muscle
Visceral muscle
Cardiac muscle
Cardiac muscle
With single nucleus and are spindle-shaped, no striations are visible:
Skeletal muscle
Visceral muscle
Cardiac muscle
Visceral muscle
What is the stem cell precursor of most connective tissues?
Macrophage
Mesenchymal
Adipocytes
Plasma cells
Mesenchymal
Elastic cartilage EXCEPT:
Intervertebral discs
External ear
Walls of the Eustachian tubes
Epiglottis
Intervertebral discs
Intervertebral discs: FIBROCARTILAGE
Which one of the listed statements is the best histologic definition of an
abscess?
A circumscribed collection of neutrophils with necrotic cellular debris
A localized defect that results from the sloughing of necrotic inflammatory tissue
from the surface of an organ
A localized proliferation of fibroblasts and small blood vessels
An aggregate of two or more activated macrophages
The excessive secretion of mucus from a mucosal surface
a. A circumscribed collection of neutrophils with necrotic cellular debris
An abscess is a localized collection of neutrophils and necrotic debris. It is basically a localized form of suppurative (purulent) inflammation, which is associated with pyogenic bacteria and is characterized by edema fluid admixed with neutrophils and necrotic cells (liquefactive necrosis or pus).
Cells provide a structural framework for the skin and play a critical role in
WOUND HEALING:
Basophils
Fibroblasts
Lymphocytes
Monocytes and macrophages
b. Fibroblasts
The cardinal sign of inflammation called rubor is mainly the result of:
Decreased interstitial hydrostatic pressure
Decreased vascular permeability of capillaries
Increased vascular permeability of venules
Vasoconstriction of muscular arteries
Vasodilation of arterioles
e. Vasodilation of arterioles
Inflammation can be defined as the reaction of vascularized living tissue to local injury.
Celsus originally described four cardinal signs of inflammation: rubor (redness), tumor
(swelling), calor (heat), and dolor (pain). Virchow later added a fifth sign, loss of function
(functio laesa).
Redness (rubor) and heat (calor) are primarily the result of increased blood flow secondary
to vasodilation of arterioles.
During acute inflammation, histamine-induced increased vascular
permeability causes the formation of exudates (inflammatory
edema).Which one of the listed cell types is the most likely source of the
histamine that causes the increased vascular permeability?
Endothelial cells
Fibroblast
Lymphocytes
Mast cells
Neutrophils
Mast cells
Inflammation characterized by the presence of large amount of pus:
Serous
Fibrinous
Hemorrhagic
Suppurative or purulent
Suppurative or purulent
Inflammation characterized by extensive outpouring of a watery, low-protein fluid from blood:
Serous
Fibrinous
Hemorrhagic
Suppurative or purulent
Serous
It is usually observed in skeletal muscles, heart, kidneys, endocrine organs and smooth muscles of hollow viscera due to increased workload and endocrine stimulation (e.g. during exercise and pregnancy)
True hypertrophy
False hypertrophy
Compensatory hypertrophy
None of these
True hypertrophy
It is due to edema fluid and connective tissue proliferation (e.g. in cirrhosis and chronic hypertrophic salphingitis or appendicitis):
True hypertrophy
False hypertrophy
Compensatory hypertrophy
None of these
False hypertrophy
An increase in size of tissues or organs due to increase in size of the individual cells:
Anaplasia
Hypoplasia
Hyperplasia
Hypertrophy
Hypertrophy
A reversible change involving the transformation of one type of cell to
another:
Anaplasia
Dysplasia
Metaplasia
Neoplasia
Metaplasia
Microscopically, the hallmark of this type necrosis is the conversion of normal cells into ‘TOMBSTONES’ :
Caseous necrosis
Coagulation necrosis
Fat necrosis
Liquefaction necrosis
Coagulation necrosis
Outlines of the cells are retained so that the cell type can still be recognized but their cytoplasmic and nuclear details are lost.
A 49-year-old man develops an acute myocardial infarction because of the sudden occlusion of the left anterior descending coronary artery. The areas of myocardial necrosis within the ventricle can best be described as:
Coagulative necrosis
Liquefactive necrosis
Fat necrosis
Caseous necrosis
Fibrinoid necrosis
Coagulative necrosis
A special form of cell death produced by the tubercle bacillus:
Liquefaction necrosis
Coagulation necrosis
Fat necrosis
Caseous necrosis
Caseous necrosis
Organ most commonly affected by FATTY DEGENERATION:
Heart
Liver
Lungs
Kidney
Liver
Cytological picture suggestive but not conclusive of malignancy:
Class II
Class III
Class IV
Class V
Class III
Cytological picture strongly suggestive of malignancy:
Class II
Class III
Class IV
Class V
Class IV
Malignant tumors of epithelial tissue origin, which have less tendency to produce supporting tissue or stroma.
Carcinoma
Sarcoma
Polyps or papillomas
Adenoma
Carcinoma
Malignant tumors of connective tissue origin, characterized by abundant intercellular tissue framework.
Carcinoma
Sarcoma
Polyps or papillomas
Adenoma
Sarcoma
A 57-year-old male presents with signs of fatigue that are the result of
anemia. Workup reveals that his anemia is the result of bleeding from a colon cancer located in the sigmoid colon. The lesion is resected and at the time of surgery no metastatic disease is found. Which of the listed
markers would be most useful for future follow-up of this patient for the evaluation of possible metastatic disease from his colon cancer?
α fetoprotein (AFP)
Carcinoembryonic antigen (CEA)
Chloroacetate esterase (CAE)
Human chorionic gonadotropin (hCG)
Prostate-specific antigen (PSA)
Carcinoembryonic antigen (CEA)
Carcinoembryonic antigen (CEA) is a glycoprotein associated with many cancers including adenocarcinomas of the colon, pancreas, lung, stomach, and breast. It is used clinically to follow up patients with certain malignancies, such as colon cancer,
and to evaluate them for recurrence or metastases.
A 23-year-old female presents with the recent onset of vaginal discharge. Physical examination reveals multiple clear vesicles on her vulva and vagina. A smear of material obtained from one of these vesicles reveals several multinucleated giant cells with intranuclear inclusions and ground-glass nuclei. These vesicles are most likely the result of an infection with
Cytomegalovirus (CMV)
Herpes simplex virus (HSV)
Human papillomavirus (HPV)
Candida albicans
Trichomonas vaginalis
Herpes simplex virus (HSV)
Infection by herpes simplex virus (HSV) or varicella-zoster virus (VZV) is recognized by nuclear homogenization (ground-glass nuclei), intranuclear inclusions (Cowdry type A bodies), and the formation of multinucleated cells.
Programmed cell death is called:
Necrosis
Apoptosis
Cellular senescence
Terminal differentiation
Apoptosis
Physiologic death of cells, indicating the death of a group of cells with immediate regeneration of cells of the same type.
Hyaline degeneration
Fatty metamorphosis
Necrosis
Necrobiosis
Necrobiosis
A postmortem clot is most likely to:
Grossly display features of recanalization
Grossly have lines of Zahn
Grossly have the appearance of “chicken fat” overlying “currant jelly”
Microscopically appear attached to the wall of the blood vessel
Microscopically have alternating layers of cells and platelets
Grossly have the appearance of “chicken fat” overlying “currant jelly”
The postmortem clot is usually rubbery, gelatinous, and lacks fibrin strands and
attachments to the vessel wall.
Large postmortem clots may have a “chicken fat” appearance overlying a dark “currant jelly” base.
This autopsy technique is characterized by in situ dissection:
Virchow
Rokitansky
Ghon
Letulle
Rokitansky
A person died of unknown disease, the physician would like to know the
final diagnosis. Who is authorized to give consent for autopsy?
The deceased himself
Next of kin or the nearest relative of the deceased
The attending physician
NBI must perform autopsy
Next of kin or the nearest relative of the deceased
Father of Pathology:
George Nicholas Papanicolaou
Rudolf Carl Virchow
Hippocrates
Anton van Leeuwenhoek
Rudolf Carl Virchow
Father of Cytopathology:
George Nicholas Papanicolaou
Rudolf Carl Virchow
Hippocrates
Anton van Leeuwenhoek
George Nicholas Papanicolaou
It is generally used in histochemistry and during operative procedures,
and is the most rapid of the commonly available freezing agents:
Liquid nitrogen
Isopentane
Carbon dioxide gas
Aerosol spray
Liquid nitrogen
Freeze-drying is a special way of preserving tissues by rapid freezing
(quenching) of fresh tissue and subsequently removing ice water
molecules (desiccation) by a physical process of transferring the still
frozen tissue block in a vacuum at a higher temperature (sublimation).
Which of the following is the correct procedure?
Quenching at –40C, sublimation at –160C
Quenching at –160C, sublimation at –160C
Quenching at –40C, sublimation at –40C
Quenching at –160C, sublimation at –40C
Quenching at –160C, sublimation at –40C
The first and most critical step in histotechnology?
Fixation
Clearing
Infiltration
Embedding
Fixation
Which of the following organ should be fixed before “grossing” or
sectioning?
Liver
Lungs
Heart
Brain
Brain
The primary aim of fixation:
Preserve the morphologic and chemical integrity of the cell
Harden and protect the tissue from trauma of further handling
Act as mordant or accentuators
Inhibit bacterial decomposition
Preserve the morphologic and chemical integrity of the cell
The secondary goal of fixation:
Preserve the morphologic and chemical integrity of the cell
Harden and protect the tissue from trauma of further handling
Act as mordant or accentuators
Inhibit bacterial decomposition
Harden and protect the tissue from trauma of further handling
Traditionally, the amount of fixative used has been 10 to 25 times the
volume of tissue to be fixed. Recently the maximum effectiveness of
fixation is noted to be ____ times the tissue volume.
10
12
15
20
20
Immersing the specimen in the fixative (immersion fixation) or, in the
case of small animals or some whole organs such as a lung, by perfusing
the vascular system with fixative (perfusion fixation):
Heat fixation
Microwave fixation
Cryopreservation (freeze drying)
Physical fixation
Chemical fixation
Chemical fixation
Fixation of tissues can be achieved by chemical or physical means.
Physical methods include heating, micro-waving and cryo-preservation (freeze drying).
Chemical fixation is usually achieved by immersing the specimen in the fixative
(immersion fixation) or, in the case of small animals or some whole organs such as a lung,
by perfusing the vascular system with fixative (perfusion fixation).
Cytoplasmic fixatives, EXCEPT:
Zenker’s fluid
Helly’s fluid
Orth’s fluid
Regaud’s fluid
Zenker’s fluid
Simplest aldehyde:
Formaldehyde (methanal)
Acetaldehyde (ethanal)
Propionaldehyde (propanal)
Butyraldehyde (butanal)
Formaldehyde (methanal)
Commercial formalin is buffered with _______ at a pH of 7.
Citrate
EDTA
Phosphate
Any of these
Phosphate
Commercial formalin is buffered with phosphate at a pH of 7.
Which of the following fixatives contains picric acid, formalin, and acetic acid
Zenker
Helly
Bouin
Zamboni
Bouin
Which of the following fixatives contains formalin, potassium dichromate,
and mercuric chloride?
Zenker
Helly
Carnoy
Orth
Helly
Commercial stock formaldehyde solutions contain:
4% formaldehyde
10% formaldehyde
37% to 40% formaldehyde
98% to 100% formaldehyde
37% to 40% formaldehyde
Formalin pigment may be removed from tissue by:
Running water
Alcoholic iodine
Alcoholic picric acid
Potassium permanganate
Alcoholic picric acid
Generally, an increase in the temperature of the fixative solution:
Decreases the tissue autolysis
Decreases the fixative penetration
Increases the speed of fixation
Increases the volume of fixative needed
Increases the speed of fixation
To prevent polymerization of formaldehyde, which of the following is added to the commercial stock solutions?
Methyl alcohol
Formic acid
Paraformaldehyde
Sodium phosphate
Methyl alcohol
All mercurial fixing solutions lead to the formation in tissues of diffuse
BLACK granules and these mercury deposits must be removed BEFORE
STAINING. Removal of mercuric chloride deposit is accomplished by:
Saturated solution of iodine
Sodium thiosulfate
Distilled water
Saturated solution of picric acid
Saturated solution of iodine
All fixative contains picric acid, EXCEPT:
Bouin’s
Brasil’s
Carnoy’s
Gendre’s
Carnoy’s
An unknown pigment in tissue section that can be bleached with a
saturated alcoholic solution of picric acid is most likely:
Melanin
Hemosiderin
Formalin pigment
Mercurial pigment
Formalin pigment
All of the following statements are true for Carnoy’s fluid, EXCEPT:
It is considered to be the most rapid fixative
It contains chromic acid and osmium tetroxide
Recommended for chromosome, lymph glands and urgent biopsies
It fixes and dehydrates at the same time
It contains chromic acid and osmium tetroxide
It is considered to be the most rapid fixative:
Carnoy’s fluid
Helly’s solution
Orth’s fluid
Regaud’s fluid
Carnoy’s fluid
Fixative recommended mainly for tumor biopsies especially the skin:
Moller’s fluid
Newcomer’s fluid
Orth’s fluid
Heidenhain’s Susa solution
Heidenhain’s Susa solution
Fixative recommended for the study of early degenerative processes and
tissue necrosis/ demonstrate Rickettsiae and other bacteria:
Acetone
Orth’s fluid
Ethyl alcohol
Bouin’s solution
Orth’s fluid
Fixative used in preserving brain tissues for diagnosis of rabies:
Methyl alcohol
Acetone
Osmic acid
Flemming’s solution without acetic acid
Acetone
Neutral formalin may be prepared from 40% formaldehyde by adding:
10 mL 40% formaldehyde to 100 mL water
10 mL 40% formaldehyde to 30 mL water
1 part 40% formaldehyde to 39 parts water
1 part 40% formaldehyde to 9 parts water
1 part 40% formaldehyde to 9 parts water
Tissue is soft when block is trimmed:
Incomplete fixation
Incomplete dehydration
Incomplete clearing
Incomplete impregnation
Incomplete fixation
Xylene turns milky as soon as tissue is placed in it:
Incomplete fixation
Incomplete dehydration
Incomplete clearing
Incomplete impregnation
Incomplete dehydration
Tissue is opaque, section cutting is difficult due to the presence of
alcohol.
Incomplete fixation
Incomplete dehydration
Insufficient clearing
Incomplete impregnation
Insufficient clearing
Air holes found during trimming:
Incomplete fixation
Incomplete dehydration
Insufficient clearing
Incomplete impregnation
Incomplete impregnation
An 87-year-old male develops worsening heart failure. Workup reveals
decreased left ventricular filling due to decreased compliance of the left
ventricle. Two months later the patient dies, and postmortem sections
reveal deposits of eosinophilic, CONGO RED-POSITIVE material in the
interstitium of his heart. When viewed under polarized light, this material
displays an apple-green birefringence. What is the correct diagnosis?
Amyloidosis
Glycogenosis
Hemochromatosis
Sarcoidosis
Senile atrophy
Amyloidosis
The histologic diagnosis of amyloid is based solely on its special staining characteristics. It stains pink with the routine hematoxylin and eosin stain, but, with Congo red stain, amyloid stains dark red and has an apple-green birefringence when viewed under polarized light.
The most common and fastest decalcifying agent used as simple
solution or combines with other reagents.
Hydrochloric acid
Nitric acid
Formic acid
Sulfurous acid
Nitric acid
Composition of von Ebner’s fluid:
Nitric acid, chromic acid, absolute ethyl alcohol
Sodium chloride, hydrochloric acid, water
Trichloroacetic acid, formol saline
Chromic acid, osmium tetoxide, acetic acid
Sodium chloride, hydrochloric acid, water
Most ideal and most reliable method of determining extent of
decalcification:
Physical test
Chemical test
X-ray or radiological test
All of these
X-ray or radiological test
Which of the following is a dehydrating agent?
Formalin
Xylene
Benzene
Alcohol
Alcohol
Dioxane is a reagent that can be used:
For both fixing and dehydrating tissues
For both dehydrating and clearing tissues
In very small volume ratios
For long periods without changing
For both dehydrating and clearing tissues
All of the following are CLEARING AGENTS, EXCEPT:
Chloroform
Dioxane
Ethanol
Xylene
Ethanol
It is the most rapid clearing agent, suitable for urgent biopsies and clears
within 15 to 30 minutes.
Xylene
Toluene
Benzene
Chloroform
Xylene
Excessive exposure to this clearing agent may be extremely toxic to man
and may become carcinogenic or it may damage the bone marrow
resulting to APLASTIC ANEMIA:
Xylene
Toluene
Benzene
Chloroform
Benzene
It is especially recommended for cutting extremely hard and rough tissue blocks.
Rocking microtome
Rotary microtome
Sliding microtome
Freezing microtome
Sliding microtome
Celloidin embedded tissues are usually cut by means of:
Rocking microtome
Rotary microtome
Sliding microtome
Freezing microtome
Sliding microtome
This type of hone usually gives the best result. It is used for manual sharpening when cutting edge has been rendered blunt or nicked.
Fine carborundum
Arkansas
Belgium yellow
Belgium yellow
The knife is first fitted with the appropriate knife back, then laid obliquely on the strop and with the cutting edge behind (edge last) is pushed backward and drawn forward in a toe to heel direction.
Honing
Stropping
Stropping
During microtomy, it is noted that most of the tissue is very hard and shrunken. One of the first things to check to prevent its happening in the future is the:
Presence of water in the clearing agent
pH of the fixative
Temperature of the infiltrating paraffin
Freshness of the reagents on the processor
Temperature of the infiltrating paraffin
When the magnification can be changed without the need to refocus, the microscope objectives are said to be:
Parfocal
Binocular
Achromatic
Apochromatic
Parfocal
A semi-synthetic wax used for embedding the eyes:
Embeddol
Bioloid
Tissue mat
Ester wax
Bioloid
It has a lower melting point of 46 to 48C, but it is harder than paraffin.
Embeddol
Bioloid
Tissue mat
Ester wax
Ester wax
It is a product of paraffin, containing rubber, with the same property as
paraplast.
Embeddol
Bioloid
Tissue mat
Ester wax
Tissue mat
The DRY celloidin embedding method is employed chiefly for the:
Bones and teeth
Large brain blocks
Whole organs
Eyes
Eyes
Dip and dunk” machines where specimens are transferred from container to container to be processed:
Tissue transfer
Fluid transfer
Heat transfer
Linear transport
Tissue transfer
TWO MAIN TYPES OF PROCESSORS
1. TISSUE-TRANSFER (or “dip and dunk”) machines where specimens are transferred from
container to container to be processed
2. FLUID-TRANSFER (or “enclosed”) types where specimens are held in a single process
chamber or retort and fluids are pumped in and out as required
Tissues are subjected to a series of different reagents in an ENCLOSED PROCESSOR by:
Tissue transfer
Fluid transfer
Heat transfer
Linear transport
Fluid transfer
TWO MAIN TYPES OF PROCESSORS
1. TISSUE-TRANSFER (or “dip and dunk”) machines where specimens are transferred from
container to container to be processed
2. FLUID-TRANSFER (or “enclosed”) types where specimens are held in a single process
chamber or retort and fluids are pumped in and out as required
“Tissue processing” describes the steps required to take animal or
human tissue from fixation to the state where it is completely infiltrated
with a suitable ______ paraffin wax and can be embedded ready for
section cutting on the microtome.
Commercial wax
Analytical wax
Technical wax
Histological wax
Histological wax
“Tissue processing” describes the steps required to take animal or human tissue from fixation to the state where it is completely infiltrated with a suitable histological wax and can be embedded ready for section cutting on the microtome.
Tissue is soft when block is trimmed:
Incomplete fixation
Incomplete dehydration
Incomplete clearing
Incomplete impregnation
Incomplete fixation
Xylene turns milky as soon as tissue is placed in it:
Incomplete fixation
Incomplete dehydration
Incomplete clearing
Incomplete impregnation
Incomplete dehydration
Airholes found on tissue during trimming:
Incomplete fixation
Incomplete dehydration
Insufficient clearing
Incomplete impregnation
Incomplete impregnation
Harris hematoxylin is used on tissue sections to stain:
Fat
Glycogen
Nuclei
Cytoplasm
Nuclei
Using the regressive staining method, one deliberately overstains the
nucleus with:
Acidified hematoxylin
Non-acidified hematoxylin
Acidified eosin
Non-acidified eosin
Non-acidified hematoxylin
Using the regressive staining method, one deliberately overstains the NUCLEUS with a NON-ACIDIFIED HEMATOXYLIN such as Harris’s.
The action of the dye is intensified by adding another agent or mordant:
Direct staining
Indirect staining
Progressive staining
Regressive staining
Indirect staining
Mordants are used to:
Change the refractive index of the tissue
Link tissue constituents more closely to the dye
Help differentiate stains
Oxidize staining solutions
Link tissue constituents more closely to the dye
It involves a differentiation or decolorization step:
Direct staining
Indirect staining
Progressive staining
Regressive staining
Regressive staining
Acetic acid is added to Harris hematoxylin to:
Keep heterochromatin from staining
Make nuclear staining more specific
Ripen the hematoxylin
Form a dye lake
Make nuclear staining more specific
Possible correction when hematoxylin and eosin (H&E) stained tissue
section shows UNEVEN NUCLEAR STAINING and “BLUE BLOBS” lacking
distinct chromatin patterns:
Restain with H & E stain
Change paraffin and reprocess tissue
Change reagents and reprocess tissue
No correction
Change reagents and reprocess tissue
Hematoxylin and eosin (H&E) stained tissue section shows uneven nuclear staining and
“blue blobs” lacking distinct chromatin patterns
POSSIBLE CAUSE: If tissue was fixed properly, then sample was improperly dehydrated
and infiltrated with paraffin
CORRECTION: Change reagents and reprocess tissue on proper processing protocol
Vital dye especially recommended for mitochondria:
Nile blue
Neutral red
Janus green
Toluidine blue
Janus green
Oldest stain:
Hematoxylin
Orcein
Carmine
Iodine
Iodine
It is the most common method used for the demonstration of basement
membrane, particularly the glomerular basement membrane of the kidney, due to their CHO content.
Gomori’s stain
Mallory’s PTAH
Periodic acid Schiff
Congo red
Periodic acid Schiff
A commonly used connective tissue procedure that stains collagen blue:
Masson trichrome
van Gieson
Best carmine
Aldehyde fuchsin
Masson trichrome
The phosphotungstic acid hematoxylin (PTAH) is useful for
demonstrating:
Edema fluid
Muscle striations
Ground substance
Reticulin network
Muscle striations
DNA can be demonstrated with:
Eosin
Pyronin
Feulgen reaction
Fast green
Feulgen reaction
Toluidine blue is used to demonstrate which of the following cells?
Plasma cells
Mast cells
Fibroblasts
Macrophages
Mast cells
Most sensitive lipid stain known:
Sudan Black B
Sudan III
Sudan IV
Oil red O
Sudan Black B
A copper phthalocyanine dye that is used for MYELIN STAINING of
paraffin processed tissue:
Perl’s Prussian blue
Luxol fast blue
Gmelin technique
Sodium alizarin red S
Luxol fast blue
Astrocytes are demonstrated by which of the following procedures?
Luxol fast blue
Cresyl violet
Weil’s
Cajal’s
Cajal’s
Cajal’s gold sublimate method for astrocytes
Mod. Holzer’s method for astrocytic process
A stain that may be used to demonstrate calcium is the:
Fontana silver nitrate
Congo red
von Kossa silver nitrate
Schmorl method
von Kossa silver nitrate
Rhodanine is used to demonstrate:
Ferric iron
Copper
Calcium
Urate crystals
Copper
Rhodanine stain is used in histology to identify copper deposits.
The recommended stain for all parasitic blood work:
Giemsa
Wright
Jenner
May-Grunwald
Giemsa
Malarial parasites appear bright green and yellow under a fluorescent
microscope in the Quantitative Buffy Coat (QBC) method. This method
uses capillary tube coated with:
Auramine-rhodamine
Methyl green- pyronine
Acridine orange
Fluoresceine isothiocyanate
Acridine orange
Microscope used for the Quantitative Buffy Coat (QBC) method for
demonstration of malarial parasite:
Brightfield microscope
Fluorescent microscope
Polarizing microscope
Phase-contrast microscope
Fluorescent microscope
When an antibody labeled with a chromogen is reacted with tissue from a patient, the immunohistochemical technique is called:
Direct
Indirect
Avidin-biotin-complex
Soluble enzyme immune complex
Direct
This system is designed to: (1) Provide routine and consistent checks to
ensure data integrity, correctness, and completeness; (2) Identify and
address errors and omissions; (3) Document and archive inventory
material and record all these activities.
Quality assurance
Quality control
Continuous quality improvement
Total quality management
Quality control
Quality Control (QC) is a system of routine technical activities to assess and maintain the
quality of the inventory as it is being compiled. It is performed by personnel compiling the
inventory. The
QC system is designed to:
1. Provide routine and consistent checks to ensure data integrity, correctness, and
completeness;
2. Identify and address errors and omissions;
3. Document and archive inventory material and record all QC activities.
QC activities include general methods such as accuracy checks on data acquisition and
calculations, and the use of approved standardized procedures for emission and removal
calculations, measurements, estimating uncertainties, archiving information and reporting.
QC activities also include technical reviews of categories, activity data, emission factors,
other estimation parameters, and methods.
Quality Assurance (QA) is a planned system of review procedures conducted by personnel
not directly involved in the inventory compilation/development process. Reviews,
preferably by independent third parties, are performed upon a completed inventory
following the implementation of QC procedures.
The traditional model for infectious disease. It consists of an external AGENT, a susceptible HOST, and an ENVIRONMENT that brings the host and agent together.
Chain of infection
Chain of custody
Epidemiological triad
Universal health
Epidemiological triad
EPIDEMIOLOGICAL TRIAD
REMEMBER “AHE” - Agent, Host and Environment
A number of models of disease causation have been proposed. Among the simplest of these is the EPIDEMIOLOGICAL TRIAD OR TRIANGLE, the traditional model for infectious disease.
The triad consists of an external agent, a susceptible host, and an environment that brings the host and agent together. In this model, disease results from the interaction between the agent and the susceptible host in an environment that supports transmission of the agent from a source to that host.
Buffer used in the IFCC recommended method for ALP
2-Amino-2-methyl-1-propanol
Which of the following is not a basic component of a QA program?
Calibration
Preventive maintenance
Viral marker testing
Record keeping
Viral marker testing
Manual records can be corrected as long as:
The original entry is neither obliterated nor deleted
The person making the correction dates and initials the change
The item to be corrected is crossed off with a single line
All of the above
All of the above
What is the purpose of competency assessment?
Identify employees in need of retraining
Identify employees who need to be fired
Evaluate an individual’s level of knowledge during a job interview
All of the above
Identify employees in need of retraining
All of the following statements are true regarding internal audits except that they:
Help identify problems early
Ensure continuous quality improvement efforts
Are used solely for the purpose of identifying “troublemakers”
Are one of the many responsibilities of the QA unit
Are used solely for the purpose of identifying “troublemakers”
Employees are the core of an organization, and therefore they:
Must be trained
Must report errors without fear of reprisal
Are a key part of problem solving
All of the above
All of the above
All blood banks as mandated by law must have a:
Water fountain
Written laboratory safety program
BSC
Foot-operated hand wash
Written laboratory safety program
Goggles, face shields, and splash barriers are:
-Personal protective equipment
-Not necessary unless working with HIV-positive or HBV-positive specimens
-Mandated at all times when working with blood specimens and blood products provided by the employee if needed
-Provided by the employee if needed
Personal protective equipment
The most effective defense for infection control and safety is wearing
gloves and:
Goggles
Laboratory coats
Posting warning signs
Hand washing
Hand washing
The reporting of an accident or injury should occur when any:
Injury may result in a fatality
Injury involves possible infection with HIV or HBV
Accident involves nonemployees or jeopardizes a patient
Accident or injury occurs
Accident or injury occurs
One of the best ways to protect employees and keep a safe laboratory
environment is to provide employees with:
Health insurance
Safety education
Rest breaks
Fluid-repellent laboratory coats
Safety education
During the morning rush, your laboratory manager comes into the laboratory and starts explaining a new policy regarding vacation
requests. Word spreads of the change throughout the day, and the message has changed somewhat. Several in the laboratory are upset and complain to the laboratory manager. Which of the following actions is the most appropriate way to handle such a situation?
-Nothing should be changed, it was handled appropriately
-The manager should have posted the change on the bulletin board in the breakroom
-The manager should have announced the policy on each shift
-The manager should have discussed and distributed the policy at a laboratory meeting, or several laboratory meetings, so that all employees heard the policy
from the manager
The manager should have discussed and distributed the policy at a laboratory meeting, or several laboratory meetings, so that all employees heard the policy
from the manager
What is the most important role of the manager in charge?
Independent decision making
Communication
Informal discussions
None of the above
Communication
Which of the following is a benefit of teams in the work place?
Sense of accomplishment
Increased communication
Relief for employees
All of the above
All of the above
Which of the following arrangements offers the most instrument service coverage and “piece of mind” for laboratory managers?
-Pay as needed for time and materials
-Establishing a service contract for key instruments
-Fingers crossed that nothing breaks down
-Order new instruments when the warranty runs out on the old one
Establishing a service contract for key instruments
Which of the following components should not be included in a written
procedure?
Test method
Cost per billable test
Quality control procedures
Reagents and media needs
Cost per billable test
You are the lead chemistry MLS. Your laboratory manager has asked you to evaluate two new methods for cholesterol analysis. In your evaluation, you found that method A was very accurate and precise and that method B was not very accurate and precise. However, the laboratory will make more money by investing in method B. Which of the
following decisions would exhibit professionalism?
-Recommend method A to your laboratory manager. It is important that the laboratory produce the most accurate and precise results
-Recommend method B to your laboratory manager. It is important that the
laboratory make as much money as possible
-State that you are unable to make a recommendation, because no difference in the methods was noted
-Recommend that you need more time to evaluate both methods
Recommend method A to your laboratory manager. It is important that the laboratory produce the most accurate and precise results
Which statement describes the appropriate scheduling process?
-Matching the people presently working in the laboratory with current workload requirements
-The setting of long-term goals and objectives for the number and types of personnel needed to meet the labor requirements of the laboratory
-Allow a democratic approach and have the staff schedule when they want to work
-Placing all of the experienced personnel on one shift
Matching the people presently working in the laboratory with current workload requirements
An effective manager will schedule the appropriate personnel to the workload requirements. Scheduling is an immediate and ongoing process versus workload management, which is a long- range planning process, and a free-for-all in a democratic
schedule can create gaps in a schedule. A balance of experienced personnel on all shifts is an appropriate scheduling process.
Which of the following is a goal of an interview?
Establish social contacts
Evaluate applicant’s skills and personality
Discuss the religious background of the applicant
Discuss prior arrests of the applicant
Evaluate applicant’s skills and personality
Records of a patient’s laboratory test results may not be released without his or her consent to anyone outside the clinical
laboratory except to the:
American Red Cross
Department of Health and Human Services
Insurance carrier
Physician who ordered the tests
Physician who ordered the tests
Focus on PEOPLE and OPERATIONAL DELIVERY of laboratory services
Laboratory supervisor
Laboratory director and administrator
Laboratory manager
Laboratory supervisor
LABORATORY SUPERVISORS
Focus on PEOPLE and OPERATIONAL DELIVERY of laboratory services
LABORATORY DIRECTORS AND ADMINISTRATORS
Retain ultimate responsibility in achieving goals e.g. changes in technology, capital
investments, and services rendered are finalized by this level of laboratory management
LABORATORY MANAGERS OR CHIEF TECHNOLOGIST
Create and maintain an environment for laboratory professionals to function efficiently
Plan, organize, direct, and control job
Create and maintain an environment for laboratory professionals to function efficiently
Laboratory supervisor
Laboratory director and administrator
Laboratory manager
Laboratory manager
LABORATORY SUPERVISORS
Focus on PEOPLE and OPERATIONAL DELIVERY of laboratory services
LABORATORY DIRECTORS AND ADMINISTRATORS
Retain ultimate responsibility in achieving goals e.g. changes in technology, capital
investments, and services rendered are finalized by this level of laboratory management
LABORATORY MANAGERS OR CHIEF TECHNOLOGIST
Create and maintain an environment for laboratory professionals to function efficiently
Plan, organize, direct, and control job
It is a statistical modification of the original Plan-Do-Check-Act (PDCA) method adopted by the The Joint Commission (TJC) as a guideline for health-care organizations. The primary goal is to reduce variables and decrease errors to a level of 3.4 defects per 1 million opportunities
Chain of custody
Lean
Six sigma
Standard Precautions
Six sigma
It utilizes a tool called “6S, ” which stands for: sort, straighten, scrub, safety, standardize, and sustain. The focus is on the elimination of
waste to allow a facility to do more with less and at the same time increase customer and employee satisfaction.
Chain of custody
Lean
Six sigma
Standard Precautions
Lean
Black belts dedicate _____ of their time to quality improvement projects, proactively addressing process and quality problems.
20%
50%
80%
100%
100%
Green belts contribute ____ of their time to improvement projects while delivering their normal job functions.
20%
50%
80%
100%
20%
Mid- to senior-level sponsors who review the project, remove
organizational barriers, and encourage the team members.
White belts
Green belts
Black belts
Blue belts
Blue belts
Smaller scale improvement projects typically headed by ____ belts use
the same Lean Six Sigma principles condensed over 1 week to improve
more focused and limited processes.
White belts
Brown belts
Yellow belts
Purple belts
Purple belts
The four essential functions of a manager are:
-Staffing, decision making, cost analysis, evaluating
-Directing, leading, forecasting, implementing
-Planning, organizing, directing, controlling
-Innovating, designing, coordinating, problem-solving
Planning, organizing, directing, controlling
While managing may involve all of the functions listed, the four core processes for all managers are planning, organizing, directing, and controlling.
Planning includes formulating of goals and objectives, organizing the tasks, and establishing schedules.
Organizing includes establishing effective communication, relationships, job descriptions, and training.
Directing involves oversight of the various steps and stages of the plan, including coordination and leadership.
Controlling involves evaluating resource utilization and outcomes, managing costs, and modifying the process to improve quality.
Direct laboratory costs for tests include which of the following?
Equipment maintenance
Insurance
Depreciation
Overtime pay
Overtime pay
All costs that are specifically linked to a test (e.g., personnel, overtime, chemicals,
supplies) are direct costs.
Which of the following accounts for the largest portion of the direct cost of a laboratory test?
Reagents
General supplies
Technologist labor
Instrument depreciation
Technologist labor
Labor accounts for 60%–70% of the direct cost per test in most laboratories.
Continuous Quality Improvement (CQI) is a team effort approach for clinical laboratories to:
Identify potential problems and correct them
Set lab financial benchmarks for the year
Make up new codes
Improve overall wages for lab employees
Identify potential problems and correct them
The CQI team identifies problems by collecting data, analyzing it, and developing methods of correcting problems. By identifying potential problems and correcting existing problems, a high competency is achieved and potential law suits are avoided.
A new laboratory information system (LIS) will be evaluated by the laboratory staff. Which of the following points should be considered in
the evaluation?
Cost of updating software
Interface ability with existing laboratory instruments
Tracking of uncrossmatched blood units in Blood Bank
All of these options
All of these options
LIS: LABORATORY INFORMATION SYSTEM
Each laboratory will have specific needs to determine the appropriate LIS. However,storage capacity, reliability, security, upgrade costs, instrument interface availability,
inventory management, and quality control functions are common parameters that must be considered.
Point-of-care testing (POCT) refers to:
All testing done to the patient to save time
All lab testing done in the central lab
Any clinical lab testing done at the patient’s bedside
Satellite lab testing
Any clinical lab testing done at the patient’s bedside
Point-of-care testing saves time and is invaluable for patient care. When a device is used at the bedside of a patient to produce a laboratory result, it is considered a point-of-care instrument.
BLOOD SAMPLES for glucose testing and for other assays are used frequently in many health care facilities for bedside testing, or point-ofcare testing (POCT)
Arterial blood
Venous blood
Capillary blood
None of these
Capillary blood
CAPILLARY BLOOD SAMPLES for glucose testing and for other assays are used frequently
in many health care facilities for bedside testing, or point-of-care testing (POCT).
Most laboratories have a definite structure that establishes the formal
setup of the various departments and levels. Which of the following
refers to this structure?
Administration table
Laboratory directory
Report of contact
Organizational chart
Organizational chart
The organizational chart shows the lines of supervision, relationships of various staff
members, and interrelationships of the various departments.
Which of the following is not associated with the goals of a laboratory
continuing education program?
Staff development
Improvement of laboratory functioning
Compliance with accreditation requirements
Prevention of boredom
Prevention of boredom
Staff development that generally improves the capabilities of the laboratory worker,
improvement of laboratory functioning through in-service programs, and the meeting of
accreditation requirements are important goals of a continuing education program.
These goals may be accomplished by means of seminars, journal clubs, lectures,
workshops, and so forth.
Which of the following refers to a program where the overall activities
conducted by the institution are directed toward assuring the quality of
the products and services provided?
Quality control
Quality assurance
Total quality management
Continuous quality improvement
Quality assurance
Quality assurance (QA) developed out of the limitations of the QC approach and defined
quality in healthcare institutions by the success of the total organization, not just
individual components of the system, in achieving the goals of patient care.
Chain-of-custody procedures must be followed for:
Blood specimens for alcohol level determination
Routine urinalysis for glucose and ketones
Therapeutic drug threshold determinations
Throat swabs of group A beta streptococcus screening
Blood specimens for alcohol level determination
Chain of custody:
When results of laboratory testing are to be used in a court of law, a specific chain of
documentation is required, whereby all steps of the testing are recorded, from specimen
collection to the issuing of the results report.
Preanalytical variables in laboratory testing include:
Result accuracy
Report delivery to the ordering physician
Test turnaround time
Specimen acceptability
Specimen acceptability
Preanalytical (i.e. pre-examination) variables include all steps in the process prior to the
analytic phase of testing, starting with the physician’s order. Examples include accuracy of
transmission of physician’s orders, specimen transport and preparation, requisition
accuracy, quality of phlebotomy services, specimen acceptability rates, etc.
Using a common labeling system for hazardous material identification
such as NFPA, the top red quadrant represent which hazard?
Health hazard
Fire hazard
Specific hazard
Reactivity
Fire hazard
HAZARDUS MATERIALS CLASSIFICATION
BLUE: Health hazard
RED: Fire hazard
WHITE: Specific hazard
YELLOW: Reactivity
The best way to motivate an ineffective employee would be to:
Confirm low performance with subjective data
Set short-term goals for the employee
Transfer the employee to another department
Ignore failure to meet goals
Set short-term goals for the employee
The most important aspect of supervision is:
Balancing the budget
Performing technical procedures
Writing accurate job descriptions
Dealing with people
Dealing with people
On repeated occasions, the day shift supervisor has observed a
technologist on the night shift sleeping. Which of the following is the
most appropriate initial course of action for the day supervisor?
Ignore the repeated incidents
Discuss the incidents with the technologist’s immediate supervisor
Notify the personnel department
Advise the laboratory director
Discuss the incidents with the technologist’s immediate supervisor
The first step in progressive counseling is verbal counseling.
Which of the following ISO standard applies to the clinical laboratory?
ISO 9000
ISO 7000
ISO 15436
ISO 15189
ISO 15189
THERE ARE TWO (2) ISO STANDARD THAT APPLY TO THE CLINICAL LABORATORY:
1. ISO 15189
MEDICAL LABORATORIES – PARTICULAR REQUIREMENT FOR QUALITY AND
COMPETENCE, 2007
2. ISO/IEC 17025 GENERAL REQUIREMENTS FOR QUALITY AND COMPETENCE OF
TESTING AND CALIBRATION LABORATORIES, 2005
Which of the following published standards for GOOD LABORATORY
PRACTICE (GLP)?
Department of Health - Philippines
World Health Organization
National Reference Laboratories
Philippine Association of Medical Technologists
Philippine Association of Medical Technologists
WORLD HEALTH ORGANIZATION
PUBLISHED STANDARDS FOR
1. GOOD MANUFACTURING PRACTICE (GMP) 1999
2. GOOD CLINICAL PRACTICE (GCP) 1995
3. GOOD LABORATORY PRACTICE (GLP) 2001
In what phase of the management process does the manager gather
together the necessary resources and people and develop an
organizational structure to put the formal plan into action?
Directing
Planning
Organizing
Controlling
Organizing
MANAGEMENT PROCESS
1. PLANNING: identifying goals, evaluate current situation, establish time frame, set
objectives, forecast resource needs, implement plan, obtain feedback.
2. ORGANIZING: formal hierarchy, informal relationship.
3. DIRECTING: leadership, time allocation.
4. CONTROLLING: instructions, follow-up, modifications
Which management function is LEADERSHIP considered the fulfillment of:
Planning
Organizing
Directing
Controlling
Directing
MANAGEMENT PROCESS
1. PLANNING: identifying goals, evaluate current situation, establish time frame, set
objectives, forecast resource needs, implement plan, obtain feedback.
2. ORGANIZING: formal hierarchy, informal relationship.
3. DIRECTING: leadership, time allocation.
4. CONTROLLING: instructions, follow-up, modifications
Which management function does staffing of the laboratory fulfill?
Planning
Organizing
Directing
Controlling
Planning
MANAGEMENT PROCESS
1. PLANNING: identifying goals, evaluate current situation, establish time frame, set
objectives, forecast resource needs, implement plan, obtain feedback.
2. ORGANIZING: formal hierarchy, informal relationship.
3. DIRECTING: leadership, time allocation.
4. CONTROLLING: instructions, follow-up, modifications
Which management function is responsible for monitoring the standards and feedback mechanisms set in place when objectives were
established during the planning stage?
Directing
Planning
Organizing
Controlling
Controlling
MANAGEMENT PROCESS
1. PLANNING: identifying goals, evaluate current situation, establish time frame, set
objectives, forecast resource needs, implement plan, obtain feedback.
2. ORGANIZING: formal hierarchy, informal relationship.
3. DIRECTING: leadership, time allocation.
4. CONTROLLING: instructions, follow-up, modifications
If the laboratory manager wishes to determine the number of
phlebotomists needed to provide emergency room coverage on Sunday
nights during the 11:00 to 7:00 shift, which one of the decision-making
procedures may prove the most useful?
Probability analysis
Queuing theory
Simulation
Linear programming
Queuing theory
QUANTITATIVE TOOLS
1. Probability analysis
Measures risk by assigning a value, expressed in percentage to the likelihood of a specific
event occurring
2. Queuing theory
Provides recommendations for the number of staff (phlebotomists, clerks, technical
personnel, and so on) needed to handle an unpredictable workload
3. Linear programming
A tool for allocating limited resources among competing needs
4. Simulation
Designs models to imitate real-life conditions so the different intervention scenarios can
be compared
According to AO 2007-0027, what are the services done only in a tertiary
category laboratory? CHECK FOUR (4) BOXES.
-Routine hematology
-Qualitative platelet determination
-Quantitative platelet determination
-Immunology
-KOH, Gram-staining
-Culture and sensitivity
-Routine chemistry
-Crossmatching
-Special chemistry
-Special hematology including coagulation procedures
Immunology
Culture and sensitivity
Special chemistry
Special hematology including coagulation procedures
PRIMARY CATEGORY
1. Routine Hematology
2. Qualitative Platelet Determination
3. Routine Urinalysis
4. Routine Fecalysis
5. Blood Typing – for hospital-based
SECONDARY CATEGORY
1. Services of primary category laboratory
2. Routine Clinical Chemistry
3. Quantitative Platelet Determination
4. Cross-matching – for hospital-based
5. Gram staining – for hospital-based
6. KOH – for hospital-based
TERTIARY CATEGORY
1. Services of secondary category laboratory
2. Special Chemistry
3. Special Hematology, including coagulation procedures
4. Immunology
5. Microbiology – culture and sensitivity
Components of an information system consist of all of the following except:
Hardware
Software
Validation
People
Validation
A computer system includes three major components: hardware, software, and people.
Hardware components are the physical pieces of equipment.
Software is a set of instructions written in computer language that tells the computer how to operate and manipulate the data.
The people interface with the hardware to enter the data that are manipulated by the software. Just as there are many different kinds of people who enter data, so there are
many different kinds of hardware and software.
An example of INTERFACE software functionality is:
The entry of blood components into the blood bank database
The transmission of patient information from the HIS into the blood bank system
The printing of a workload report
Preventing access to the system by an unauthorized
The transmission of patient information from the HIS into the blood bank system
User passwords should be:
Shared with others
Kept confidential
Posted at each terminal
Never changed
Kept confidential
The four essential functions of a manager are:
Staffing, decision making, cost analysis, evaluating
Directing, leading, forecasting, implementing
Planning, organizing, directing, controlling
Innovating, designing, coordinating, problem-solving
Planning, organizing, directing, controlling
While managing may involve all of the functions listed, the four core processes for all managers are planning, organizing, directing, and controlling.
Planning includes formulating of goals and objectives, organizing the tasks, and establishing schedules.
Organizing includes establishing effective communication, relationships, job descriptions, and training.
Directing involves oversight of the various steps and stages of the plan, including coordination and leadership.
Controlling involves evaluating resource utilization and outcomes, managing costs, and modifying the process to improve quality.
Which order of events should be followed at the conclusion of a laboratory worker’s shift in order to prevent the spread of bloodborne pathogens?
Remove gloves, disinfect area, wash hands, remove lab coat
Disinfect area, remove gloves, remove lab coat, wash hands
Disinfect area, remove gloves, wash hands, remove lab coat
Remove gloves, wash hands, remove lab coat, disinfect area
Disinfect area, remove gloves, remove lab coat, wash hands
According to the OSHA Bloodborne Pathogens Rule of 1992, gloves and lab coats are to be removed after disinfection of the work area.
The material safety data sheets (MSDSs) for hazardous chemicals address which of the following conditions?
Physical characteristics of the chemical
Safe handling and storage of the chemical
Specific health hazards associated with the chemical
All of these
All of these
The MSDS documents describe the chemical and physical characteristics, safe handling
and storage, and potential health hazards of reagents used in the laboratory. These
documents must be located in an easily accessible place so that all employees have
access to them. They should be reviewed at least once per year during safety in service
training.
The OSHA hazard communication standard, the “RIGHT-TO-KNOW” rule, is designed:
To avoid lawsuits
To protect laboratory staff
To protect patients
To establish safety standards
To protect laboratory staff
Legislation on chemical hazard precautions, such as state “right-to-know” laws, and OSHA document 29 CFR 1910 set the standards for chemical hazard communication (HAZCOM)
and determine the types of documents that must be on file in a laboratory
“Six sigma” is a method used in industry and business as well as the clinical laboratory in order to:
Allow for improved performance
Prevent and remove defects in production
Improve customer satisfaction
All of these
All of these
Six sigma management is a method for measuring the efficiency of a process such as mass production, and it is applied in the clinical laboratory to reduce the frequency of test errors.
The process consists of five steps: define, measure, analyze, improve, and control.
The term “six sigma” denotes a process so precise that six times the standard deviation still results in a useful product (laboratory test result that is within acceptable limits for total allowable error).
DEMOGRAPHIC INFORMATION about the patient in the information database, EXCEPT:
Name and gender
Age and birth date (DOB)
Referring or attending physician
Marital status
Marital status
SITUATION: A medical laboratory science student in training accidentally splashed a few drops of an extraction reagent from an enzyme immunoassay kit for group A Streptococcus into her right eye, and felt an immediate burning sensation. What should she do first?
Locate the MSDS sheet for the EIA test kit
Go directly to the emergency department for treatment
Go to the eye-wash station and rinse the eye thoroughly with water
Report directly to her immediate supervisor
Go to the eye-wash station and rinse the eye thoroughly with water
When a chemical compound comes into contact with the skin or eyes, the first course of action is to dilute the chemical by flooding it with a large volume of water.
Certificate of registration as Medical Technologist shall not be required for which of the following?
Duly registered physicians
MT from other countries called in for consultation or as visiting or exchange professors
Medical technologists in the service of the US Armed Forces stationed in the Philippines
All of these
All of these
Qualification for Medical Technologist examination:
Good health and good moral character
Completed a course of at least four (4) years leading to the degree of BSMT/ PH
Graduated from some other profession and has been actually performing medical
technology for the last (5) years prior to the date of the examinations, if such
performance began prior to June 21, 1969
All of these
All of these
In cases where the screening drug-testing laboratory is a division, section, or unit of a Clinical Laboratory, it shall be headed by:
Licensed physician
Medical technologist
Pharmacist
Chemist, chemical engineer
All of these
All of these
A drug test is valid for _________.
Three months
Six months
One year
Two years
One year
ADDITIONAL DRUG TESTING MAY BE REQUIRED FOR JUST CAUSE AS IN ANY OF THE
FOLLOWING CASES:
After workplace-related accidents, including near miss;
1. Following treatment and rehabilitation to establish fitness for returning to work/resumption of job
2. In the light of clinical findings and/or upon recommendation of the assessment team.
The LICENSE TO OPERATE (LTO) issued to the CLINICAL LABORATORY is valid for:
One year
Two years
Three years
Six months
One year
Non–hospital based clinical laboratories shall file applications for renewal of LTO beginning on the FIRST DAY OF OCTOBER UNTIL THE LAST DAY OF NOVEMBER of the current year.
LICENSE TO OPERATE (LTO) Blood Service Facilities is valid for a period of ____ years.
One year
Two years
Three years
Six years
Three years
Beginning on January 1 of the first year of the validity period to December 31 of the third year of the validity period.
Coliform organisms which grow at 44 or 44.5 C and ferment lactose to produce acid and gas:
Fecal streptococi
Thermorolerant (fecal) coliforms
Heterotrophic organisms
Total coliforms
Thermorolerant (fecal) coliforms
THERMOTOLERANT (FECAL) COLIFORMS
Coliform organisms which grow at 44 or 44.5 C and ferment lactose to produce acid and gas
According to DOH, for the diagnostic evaluation of PTB, ___ sputum specimens should be obtained for DSSM.
1
2
3
4
2
For the diagnostic evaluation of PTB, two (2) sputum specimens should be obtained for DSSM.
Same day (spot-spot) strategy using 2 consecutive specimens collected 1-hour apart is recommended for direct Ziehl-Neelsen microscopy.
AT LEAST 1 SPUTUM SMEAR POSITIVE IS CONSIDERED BACTERIOLOGICALLY CONFIRMED TB.
The Professional Regulation Commission, otherwise known as the PRC, is a ____-man commission attached to office of the President for general direction and coordination.
One man
Two-man
Three-man
Four-man
Three-man
PRC CHAIRPERSON: Atty. Charito Zamora
PRC COMMISSIONERS: Jose Y. Cueto, Jr. & Erwin Enad
An act done to avoid harming the patients:
Beneficence
Non-maleficence
Autonomy
Justice
Non-maleficence
First clinical laboratory in the Philippines:
San Lazaro Hospital
Manila Public Health Laboratory
Research Institute for Tropical Medicine
National Reference Laboratory
Manila Public Health Laboratory
Introduced medical technology practice in the Philippines after World War II:
Dr. Pio de Roda
Dr. Mariano Icasiano
Dr. Prudencia Sta. Ana
26th Medical Laboratory of the 6th US Army
26th Medical Laboratory of the 6th US Army
Qualification of BOARD EXAMINERS (Board of MT) EXCEPT:
Filipino citizen, good moral character
Qualified pathologist or duly RMTs
In practice of laboratory medicine or MT for at least five years prior to his appointment
Not a member of the faculty of any medical technology school for at least two years prior to appointment
In practice of laboratory medicine or MT for at least five years prior to his appointment
In practice of laboratory medicine or medical technology for at least ten (10) years prior to his appointment
BOARD OF MEDICAL TECHNOLOGY
Head: Dr. Marilyn Barza
Members: Marian Tantingco, Marilyn Atienza
1. Filipino citizen
2. Good moral character
3. Qualified pathologist or duly RMTs
4. In practice of laboratory medicine or medical technology for at least ten (10) years prior to his appointment
5. Not a member of the faculty of any medical technology school for at least two (2) years
prior to appointment or having any pecuniary interest direct or indirect in such institution
TERM OF OFFICE: Three (3) years after appointments or until their successors shall have been appointed and duly qualified
BOARD OF MT term of office:
1 year after appointments or until their successors shall have been appointed and
duly qualified
2 years after appointments or until their successors shall have been appointed and
duly qualified
3 years after appointments or until their successors shall have been appointed
and duly qualified
5 years after appointments or until their successors shall have been appointed and
duly qualified
3 years after appointments or until their successors shall have been appointed
and duly qualified
TERM OF OFFICE: Three (3) years after appointments or until their successors shall have been appointed and duly qualified
The current PRC CHAIRPERSON is:
Dr. Marilyn Barza
Dr. Jose Cueto
Atty. Charito Zamora
Yolanda Reyes
Atty. Charito Zamora
PRC is a THREE-MAN COMMISSION attached to the office of the President for general direction and coordination.
THE CHAIRPERSON OR COMMISSIONER SHALL BE:
1. At least forty (40) years of age
2. Holding a valid certificate of registration/professional license and a valid professional
identification card or a valid certificate of competency issued by the Commission or a valid professional license issued by any government agency
3. Familiar with the principles and methods of professional regulation and/or licensing
4. Had at least five (5) years of executive or management experience
5. Provided, that, one (1) of the Commissioners must be a past Chairperson/member of a Professional Regulatory Board
Renewal of CLINICAL LABORATORY license:
January to February
March to April
August to September
October to November
October to November
AO 2007-0027 (CLINICAL LABORATORIES): Renewal of LTO, FIRST DAY OF OCTOBER TO LAST DAY OF NOVEMBER; processed not later than 5 working days after expiration of its
license; announced licensure inspections at any reasonable time.
Random drug test:
Applicants for firearm’s license
Candidates for public office whether appointed or elected both in the national or
local government
Persons apprehended or arrested for violating the provisions of the drug act
Students of secondary and tertiary schools
Students of secondary and tertiary schools
MANDATORY DRUG TEST
1. Applicants for driver’s license
2. Applicants for firearm’s license
3. Officers and members of the military, police and other law enforcers
4. Persons charged before the prosecutor’s office with a criminal offense having an
imposable penalty of imprisonment of not less than six (6) years and one (1) day
5. Candidates for public office whether appointed or elected both in the national or local
government
6. Persons apprehended or arrested for violating the provisions of the drug act
RANDOM DRUG TEST
1. Students of secondary and tertiary schools
2. Officers and employees of public and private offices whether domestic or overseas.
Current HIV testing diagnostic algorithm in the Philippines include screening test from referring labs:
3 parallel screening tests
2 parallel screening tests + 1 supplemental confirmatory test
1 screening test + 1 confirmatory test
2 parallel screening tests + 2 confirmatory tests
2 parallel screening tests + 1 supplemental confirmatory test
CURRENT NATIONAL HIV TESTING DIAGNOSTIC ALGORITHM IN THE PHILIPPINES
Current HIV testing diagnostic algorithm in the Philippines include screening test from referring labs
*A reactive result from the screening test will be sent to SACCL for confirmatory testing,
where 2 parallel screening tests are performed
*A reactive result on either of these tests will then require Western blot and/or nucleic acid test as supplemental confirmatory tests.
PROPOSED RAPID HIV TESTING DIAGNOSTIC ALGORITHM (rHIVda) FOR THE PHILIPPINES
The Disease Prevention and Control Bureau (DPCB) of DOH, National Reference
Laboratory-San Lazaro Hospital/STD AIDS Cooperative Central Laboratory (NRL SLH/SACCL), and the HIV National Reference Laboratory of Australia has conducted the research study to develop a rHIVda for the Philippines
*rHIVda, includes 2 immunoassay tests and 3 RDTs for local validation of sensitivity and specificity on general and key population in the country
*Key population includes men who are having sex with men, people in prisons and other closed settings, people who inject drugs, sex workers, and transgender men and women
A process of providing an individual information on the biomedical aspects of HIV/AIDS and emotional support to any psychological
implications of undergoing HIV testing and the test result itself BEFORE he/she is subjected to the test:
Medical confidentiality
Informed consent
Pre-test counselling
Post-test counselling
Pre-test counselling
A process of providing risk-reduction information and emotional support to a person who submitted to HIV testing at the time that the test result is released
Medical confidentiality
Informed consent
Pre-test counselling
Post-test counselling
Post-test counselling
According to RA 8504, all results of HIV/AIDS testing shall be confidential and shall be released only to the following persons, EXCEPT:
Person who submitted himself/herself to such test
Either parent of a minor child who has been tested
Legal guardian in the case of insane persons or orphans
Person authorized to receive such results in conjunction with the AIDSWATCH program
Justice of the Court of Appeals or the Supreme Court
Boyfriend of the person who submiited herself to test
Boyfriend of the person who submitted herself to test
RA 8504
ALL RESULTS OF HIV/AIDS TESTING SHALL BE CONFIDENTIAL AND SHALL BE RELEASED
ONLY TO THE FOLLOWING PERSONS:
o Person who submitted himself/herself to such test
o Either parent of a minor child who has been tested
o Legal guardian in the case of insane persons or orphans
o Person authorized to receive such results in conjunction with the AIDSWATCH program
o Justice of the Court of Appeals or the Supreme Court (as provided under Subsection (c) of RA 8504 and on accordance with the provision of Section 16)
RA 11166
DISCLOSURE OF HIV-RELATED TEST RESULTS:
RESULT OF ANY TEST RELATED TO HIV SHALL BE DISCLOSED BY THE TRAINED SERVICE PROVIDER WHO CONDUCTS PRE-TEST AND POST-TEST COUNSELING TO:
1. Individual who submitted to the test
2. If the patient is <15 years old, an orphan or is mentally incapacitated, the result may be disclosed to either parent, legal guardian or a duly assigned licensed social worker or health worker, whichever is applicable.
3. If the patient is <15 years old and not suffering from any mental incapacity, has given
voluntary and informed consent to the procedure, the result of the test shall be disclosed to the child, provided that the child should be given age-appropriate counseling and access to health care and sufficient support services.
4. Person authorized to receive such results in conjunction with the DOH Monitoring Body
National Reference Laboratory for HIV/AIDS, Hepatitis, Syphilis and other Sexually Transmitted Infections (STls):
Reasearch Institute for Tropical Medicine
San Lazaro Hospital
East Avenue Medical Center
National Kidney and Transplant Institute
Lung Center of the Philippines
San Lazaro Hospital
National Reference Laboratory for Dengue, Influenza, Tuberculosis and other Mycobacteria, Malaria and other parasites, Bacterial enteric
diseases, Measles and other Viral exanthems, Mycology, Enteroviruses, Antimicrobial resistance and Emerging Diseases; NRL for confirmatory
testing of blood units:
Research Institute for Tropical Medicine
San Lazaro Hospital
East Avenue Medical Center
Lung Center of the Philippines
National Kidney and Transplant Institute
Research Institute for Tropical Medicine
National Reference Laboratory for Biochemistry:
Research Institute for Tropical Medicine
San Lazaro Hospital
East Avenue Medical Center
Lung Center of the Philippines
National Kidney and Transplant Institute
Lung Center of the Philippines
National Reference Laboratory for Environmental and Occupational Health; Toxicology and Micronutrient Assay:
Research Institute for Tropical Medicine
San Lazaro Hospital
East Avenue Medical Center
Lung Center of the Philippines
National Kidney and Transplant Institute
East Avenue Medical Center
National Reference Laboratory for Hematology including Immunohematology, Immunopathology and Anatomic Pathology:
Research Institute for Tropical Medicine
San Lazaro Hospital
East Avenue Medical Center
Lung Center of the Philippines
National Kidney and Transplant Institute
National Kidney and Transplant Institute
Other term for METHYLENEDIOXYMETHAMPHETAMINE (MDMA):
Opium
Marijuana
Shabu
Ecstacy
Ecstacy
Other term for METHAMPHETAMINE HYDROCHLORIDE:
Opium
Marijuana
Shabu
Ecstacy
Shabu
Individual from whom a specimen is collected for drug testing:
Patient
Donor
Coddler
Pusher
Donor
A standard 5 PANEL DRUG URINE TEST is the drug test most frequently used by government agencies and private employers. A 5 panel drug test typically tests for:
THC, opiates and PCP
THC, opiates, PCP, cocaine, and ethanol
THC, opiates, PCP and cocaine
THC, opiates, PCP, cocaine, and amphetamines
THC, opiates, PCP, cocaine, and amphetamines
All are included in the five (5) panel drug test, EXCEPT:
Amphetamine
Cocaine
Ethanol
Marijuana
Ethanol
In order to pass the examination, a candidate must obtain a general average of at least ___ in the written test.
60%
65%
70%
75%
75%
Certificate of registration as medical technologist will be issued to successful applicants who attained the age of:
18 years old
19 years old
20 years old
21 years old
21 years old
Relative weight of Histopathology and MT Laws in the MT Board Examination:
10%
20%
35%
65%
10%
Step-by-step documentation of the handling and testing of legal specimens:
Turnaround time
Chain of custody
Chain of infection
Standard precaution
Chain of custody
Time from ordering a test through analysis in the laboratory to the charting of the report:
Turnaround time
Chain of custody
Chain of infection
Standard precaution
Turnaround time
On March 25, 2020, the President signed into law the Bayanihan to Heal as One Act (RA 11469), which is valid for ____ months unless extended by
Congress.
Two months
Three months
Six months
Twelve months
Three months
On March 25, the President signed into law the Bayanihan to Heal as One Act (RA 11469), which is valid for three months unless extended by Congress.
RA 5527 consists of:
30 sections
32 sections
50 sections
52 sections
32 sections
Which of the following amends RA 5527 on June 11, 1978?
RA 6138
PD 498
PD 1534
PD 1534
All are sections of RA 5527 amended by PD 1534, except:
Section 3
Section 8
Section 13
Section 18
Section 18
Minor subject (10%) in the MT Board Exam:
Clinical Chemistry
Hematology
Immunology, Serology & Blood Banking
Clinical Microscopy
Clinical Microscopy
Refresher course for applicants who have failed the Board Examination for the ___ time.
First time
Second time
Third time
Fourth time
Third time
Revocation:
Unanimous vote (3/3)
Majority vote (2/3)
Unanimous vote (3/3)
Suspension:
Unanimous vote (3/3)
Majority vote (2/3)
Majority vote (2/3)
Part of drinking water analysis, except:
Calcium
Fecal coliform test
Sodium
Potassium
Potassium
License and accredit drug testing centers in each province and city:
DOH
PDEA
PNP
PRC
DOH
Random drug test:
Applicants for firearm’s license
Officers and members of the military, police and other law enforcers
Students of secondary and tertiary schools
Candidates for public office whether appointed or elected both in the national or local government
Students of secondary and tertiary schools
Fill in the blank (Code of Ethics): Be dedicated to ____.
Fairness to all and in a spirit of brotherhood toward other members of the profession
Law and shall not participate in illegal work
Responsibilities inherent to being a professional
Use of clinical laboratory science to promote life and benefit mankind
Use of clinical laboratory science to promote life and benefit mankind
Continuing Professional Development Act of 2016:
RA 7719
RA 9288
RA 10912
RA 7170
RA 10912
Published standards for GOOD LABORATORY PRACTICE:
CDC
DOH
PRC
WHO
WHO
WORLD HEALTH ORGANIZATION
PUBLISHED STANDARDS FOR:
1. GOOD MANUFACTURING PRACTICE (GMP) 1999
2. GOOD CLINICAL PRACTICE (GCP) 1995
3. GOOD LABORATORY PRACTICE (GLP) 2001
First clinical laboratory in the Philippines:
San Lazaro Hospital
Research Institute for Tropical Medicine
Manila Public Health Laboratory
National Reference Laboratory
Manila Public Health Laboratory
Acceptable patient identifiers include:
-Patient’s name, gender, medical record number
-Patient’s name, gender, date of birth
-Patient’s name, requesting physician, medical record number
-Patient’s name, date of birth, medical record number
Patient’s name, date of birth, medical record number
Acceptable patient identifiers include the patient’s name, an identification number assigned by a health care facility such as the medical record number, or date of birth.
According to DOH A.O. 2020-0031, certificate of accreditation of laboratories for DRINKING WATER ANALYSIS is valid for __ year(s) and expires on the last day of December. TAKE NOTE OF YEAR 2020 DOH REVISION.
One year
Two years
Three years
Five years
Three years
Administrative Order No. 2006-0024 known as the “Rules and Regulations Governing the Accreditation of Laboratories for Drinking Water Analysis
Certificate of Accreditation is valid for 2 years and expires on the last day of December
DOH A.O. 2020-0031 (July 17, 2020)
Revised Rules and Regulations Governing the Accreditation of Laboratories for Drinking Water Analysis Laboratory for Drinking Water Analysis (LDWA)
DOH Certificate of Accreditation is valid for 3 years, effective from January 1 of the first year, and shall expire on the last day of December on the third year
If a medical technologist was not able to complete the number of CPD units upon renewal of PRC license, he may sign a/an: [ONLY UP TO DECEMBER 2023]
Affidavit of undertaking
Certificate of exemption
Certificate of registration
Suspension order
Affidavit of undertaking
AFFIDAVIT OF UNDERTAKING
Contains your specific promises to:
1. Undertake to comply with the required number of CPD credit units during the validity of your PRC ID; and to
2. Submit proof of compliance with the required number of CPD units during the next renewal of the PRC ID
Obligation of MT to the patient:
Compliance to PRC
Compliance to the department of health
Comprehensive health education
Strive for excellence in professional practice
Strive for excellence in professional practice
All traits are mentioned in the MT CODE OF ETHICS, except:
Honesty
Humility
Integrity
Reliability
Humility
Components of quality assurance:
Pre-analytical variables
Analytical variables
Post-analytical variables
All of these
All of these
Quality assurance is the broader concept, encompassing preanalytical, analytical, and postanalytical variables.
An example of cellular adaptation is:
Edema
Inflammation
Neoplasia
Dysplasia
Dysplasia
Cellular adaptations:
1. Atrophy
2. Hypertrophy
3. Hyperplasia
4. Metaplasia
5. Dysplasia
Low temperature:
Enhance fixation
Retard fixation
Variable
No effect
Retard fixation
Stopping all cellular activities so that the cells can be viewed under the microscope as if they are still in their original living state:
Decalcification
Embedding
Fixation
Staining
Fixation
Fixative for electron microscopy:
Carnoy’s
Formalin
Glutaraldehyde
Zenker
Glutaraldehyde
Most common and fastest decalcifying agent used:
Formic acid
Hydrochloric acid
Nitric acid
Sulfurous acid
Nitric acid
For most instances, dehydration starts by placing the fixed specimen in:
70% ethyl alcohol
95% ethyl alcohol
Absolute alcohol
Xylene
70% ethyl alcohol
Transition step between dehydration and infiltration with the embedding medium:
Fixation
Clearing
Infiltration
Mounting
Clearing
Enclosed tissue processor:
Mechanical transfer
Dip and dunk
Fluid transfer
Tissue transfer
Fluid transfer
What are the processes (IN ORDER) done by the automatic tissue processor:
Fixation, clearing, dehydration and infiltration
Fixation, infiltration, dehydration and clearing
Fixation, dehydration, clearing and infiltration
Fixation, dehydration, infiltration and clearing
Fixation, dehydration, clearing and infiltration
These knives are used to cut block for ELECTRON MICROSCOPY (EM):
Disposal blades
Steel knives
Diamond or glass knives
Magnetic blades
Diamond or glass knives
Sections fail to form ribbons:
Hard spot in tissue due to calcium
Sections are too thick
Paraffin is impure
Knife edge is dirty
Sections are too thick
Surfaces and edges of the block are not parallel
Horizontal surface of the block is not parallel to the knife
Paraffin wax is too hard
Knife is tilted too much
Sections are too thick
Knife is dull
Effect of basic pH to ripening process:
Slower oxidizing process
More rapid oxidizing process
Variable
No effect
More rapid oxidizing process
pH will have effect on rate of oxidation.
1. Neutral aqueous solution of hematoxylin will form hematein in a few hours
2. Alkaline solutions - more rapid oxidizing process
3. Acid solutions - slower oxidizing process
RETICULIN FIBERS IN GOMORI’S silver impregnation stain:
Black
Blue
Red
Green
Black
A stain containing silver nitrate for demonstration of spirochetes:
Fite-Faraco
Warthin-Starry
Masson-Fontana
Mallory’s PTAH
Warthin-Starry
Frozen sections are stained by hand because:
Staining is more accurate
Prevent overstaining
Faster for one or a few individual sections
Predictable colors
Faster for one or a few individual sections
Frozen sections are stained by hand, because this is faster for one or a few individual sections.
_______ are raised against specific cellular _____ and then conjugated with a _______.
Antigen, antibody, visual marker
Visual marker, antigen, antibody
Antibody, antigen, visual marker
Visual marker, antibody, antigen
Antibody, antigen, visual marker
Gastrointestinal specimens, except:
Gastric lavage
Gastric brush
Fine needle aspirate (submucosal lesions)
Induced vomiting
Induced vomiting
Liquid-based cytology samples:
Body fluids
Touch imprint
Brush sampling
Skin scrape
Body fluids
It is considered to be a most sensitive and specific reagent for lipid staining:
Sudan III
Sudan IV
Sudan Black
Oil Red O
Sudan Black
One measure of the efficiency of a surgical pathology service:
Rapidity of accurate reporting the diagnosis to clinicians
Rapidity of tissue processing
Sufficiency of tissue preservation
Sufficiency of reagents and standards
Rapidity of accurate reporting the diagnosis to clinicians
Objective of a quality assurance program in histopathology:
Ensure to process the tissues
Ensure acceptable service
Ensure to follow standards
Ensure the completeness, accuracy and timeliness of a histopathology report
Ensure the completeness, accuracy and timeliness of a histopathology report
Primary objective in quality and safety control programs in histopathology laboratories:
Correctness of interpretation of reports
Ensure correct sampling
Ensure accurate treatment to patient
Promotion of health and safety of patient, laboratory personnel and environment
Promotion of health and safety of patient, laboratory personnel and environment
Promotion of health and safety of patient, laboratory personnel and environment should be the primary objective in quality and safety control programs adopted by the histopathology laboratories.
Which of the following fixatives contains picric acid, formalin, and acetic acid?
Zenker
Helly
Bouin
Zamboni
Bouin
The volume of fixative should exceed the volume of the tissue by:
1 to 2 times
5 to 10 times
10 to 20 times
25 to 50 times
10 to 20 times
Which of the following fixatives contains formalin, potassium dichromate, and mercuric chloride?
Zenker
Helly
Carnoy
Orth
Helly
Precipitate left in tissues that have been fixed in solutions containing mercuric chloride may be removed by immersion in:
Running water
Sodium thiosulfate
Weak ammonia water
Iodine
Iodine
Commercial stock formaldehyde solutions contain:
4% formaldehyde
10% formaldehyde
37 to 40% formaldehyde
98 to 100% formaldehyde
37 to 40% formaldehyde
Important:
Commercial stock solution: 37 to 40% formaldehyde
As fixing fluid: 10% formalin
Formalin pigment may be removed from tissue by:
Running water
Alcoholic iodine
Alcoholic picric acid
Potassium permanganate
Alcoholic picric acid
To prepare a 10% solution of formalin, which of the following amounts of water should be added to 100 mL of stock formaldehyde:
1,000 mL
900 mL
450 mL
10 mL
900 mL
Important: 1:10 dilution
1 part 40% formaldehyde
9 parts water
TV = 10
Carnoy fluid is prepared with acetic acid, alcohol, and:
Chloroform
Formalin
Acetone
Osmium tetroxide
Chloroform
The first and most important procedure in the preparation of a tissue for microscopic examination is the choice of:
Fixative
Dehydrating agent
Clearing agent
Staining technique
Fixative
Generally, an increase in the temperature of the fixative solution:
Decreases the tissue autolysis
Decreases the fixative penetration
Increases the speed of fixation
Increases the volume of fixative needed
Increases the speed of fixation
Which of the following may cause tissue to become overhardened?
Prolonged fixation
Abbreviated fixation
Inadequate dehydration
Incomplete clearing
Prolonged fixation
To prevent polymerization of formaldehyde, which of the following is added to the commercial stock solutions?
Methyl alcohol
Formic acid
Paraformaldehyde
Sodium phosphate
Methyl alcohol
Which of the following is a dehydrating agent?
Formalin
Xylene
Benzene
Alcohol
Alcohol
A clearing agent for use in processing tissues for paraffin embedding must be miscible with the:
Fixative and paraffin
Dehydrant and paraffin
Fixative and dehydrant
Paraffin and water
Dehydrant and paraffin
Dioxane is a reagent that can be used:
For both fixing and dehydrating tissues
For both dehydrating and clearing tissues
In very small volume ratios
For long periods without changing
For both dehydrating and clearing tissues
A reagent that CANNOT be used for dehydrating tissue is:
Benzene
Absolute alcohol
Dioxane
Acetone
Benzene
Which of the following chemicals is NOT a clearing agent?
Chloroform
Dioxane
Ethanol
Xylene
Ethanol
The process of removing water from tissue is called:
Dehydration
Reduction
Oxidation
Clearing
Dehydration
The dehydration and clearing steps can be omitted when using:
Celloidin
Epoxy resin
Glycol methacrylate
Water-soluble wax
Water-soluble wax
During microtomy, it is noted that most of the tissue is very hard and shrunken. One of the first things to check to prevent its happening in the future is the:
Presence of water in the clearing agent
pH of the fixative
Temperature of the infiltrating paraffin
Freshness of the reagents on the processor
Temperature of the infiltrating paraffin
The temperature of the oven used to maintain a supply of melted paraffin for embedding tissue should be about:
43C
43F
60C
60F
60C
When using a microscope with a x10 ocular and a x40 objective, the total magnification is approximately:
100
400
1,000
4,000
400
Important:
Total magnification (TM)
= magnification of objective x magnification of ocular
= 10 x 40
= 400
The microwave oven creates heat in staining solutions by:
Convection
Conduction
Nonionizing radiation
Electrolytic action
Nonionizing radiation
Harris hematoxylin is used on tissue sections to stain:
Fat
Glycogen
Nuclei
Cytoplasm
Nuclei
Ripening of hematoxylin is a process of:
Hydrolysis
Oxidation
Mordanting
Reduction
Oxidation
The active staining ingredient in ripened hematoxylin solutions is:
Hematin
Hematein
Hematoxylin
Hemosiderin
Hematein
The most important step in regressive hematoxylin staining is:
Postmordanting in picric acid
Use of hematoxylin containing acetic acid
Differentiation in acid-alcohol
Washing in water after the hematoxylin
Differentiation in acid-alcohol
Mordants are used to:
Change the refractive index of the tissue
Help differentiate stains
Link tissue constituents more closely to the dye
Oxidize staining solutions
Link tissue constituents more closely to the dye
The combination of a dye and a mordant is called a/an:
Base
Accelerator
Lake
Buffer
Lake
Mercuric oxide (or sodium iodate) is used in Harris hematoxylin to:
Form hematein
Prevent oxidation
Serve as the mordant
Stabilize the solution
Form hematein
DNA can be demonstrated with:
Eosin
Pyronin
Feulgen reaction
Fast green
Feulgen reaction
The mordant in Weigert hematoxylin is:
Iron
Aluminum
Mercury
Tungsten
Iron
Acetic acid is added to Harris hematoxylin to:
Keep heterochromatin from staining
Make nuclear staining more specific
Ripen the hematoxylin
Form a dye lake
Make nuclear staining more specific
Which of the following is stained rose by the methyl green-pyronin (MGP) technique?
Heterochromatin
DNA
RNA
Golgi apparatus
RNA
Differentiating in the H&E stain is an example of using:
Excess mordant
Weak acid
Oxidizers
Buffers
Weak acid
The Feulgen reaction demonstrates:
DNA only
RNA only
Both DNA and RNA
Phosphoric acid groups
DNA only
Sections for special stains have been accidentally stained with hematoxylin. To remove the hematoxylin, place the sections in:
Acid alcohol
Dilute ammonia
Lithium carbonate
Isopropyl alcohol
Acid alcohol
Glycogen is best demonstrated by the use of:
Crystal violet
Mayer mucicarmine
PAS with and without diastase
Alcian blue with and without hyaluronidase
PAS with and without diastase
Amyloid can be demonstrated with:
Congo red
Mayer mucicarmine
Cresyl echt violet
Alcian blue
Congo red
Which of the following methods best demonstrates elastic tissue?
Verhoeff
Silver impreganation
Gomori trichrome
PAS
Verhoeff
The oil red O stain requires which of the following sections?
Paraffin
Celloidin
Frozen
Plastic
Frozen
The oil red O stain might be used to demonstrate:
Rhabdomyosarcomas
Leiomyosarcomas
Liposarcomas
Adenocarcinomas
Liposarcomas
The best stain for the demonstration of Mycobacterium leprae is the:
Fite
PAS
Kinyoun
Gram
Fite
The PAS reaction will demonstrate fungi, because the cell wall contains:
Lipids
Carbohydrates
Reducing substances
Argyrophilic protein
Carbohydrates
A stain that may be used to demonstrate calcium is the:
Gomori chromium hematoxylin
Fontana-Masson
von Kossa silver nitrate
Schmorl method
von Kossa silver nitrate
The Perl’s stain is used for the detection of:
Reducing substances
Hemosiderin
Hemoglobin
Calcium
Hemosiderin
A tissue frequently used as a control for the Fontana-Masson stain is:
Skin
Lymph node
Liver
Spleen
Skin
Toluidine blue stains:
Helicobacter
Legionella
Spirochetes
Chlamydia
Helicobacter
Acridine orange demonstrates:
Cell wall
Mitochondria
Nucleic acid
Flagella
Nucleic acid
Spirochetes in fixed tissue are best demonstrated by:
Histochemical techniques
Vital staining
Metallic impregnation
Physical methods
Metallic impregnation
Muscle that histologically contains cytoplasmic cross-striations and has multiple nuclei located at the edge of the fibers is classified as:
Smooth
Visceral
Skeletal
Cardiac
Skeletal
The terms “squamous,” “cuboidal,” and “columnar” describe cells that have their origin in which tissue?
Connective
Muscle
Epithelium
Bone
Epithelium
Another name for fat cells is:
APUD cells
Myocytes
Adipocytes
Histiocytes
Adipocytes
Elastic fibers have an affinity for:
Sudan
Indigo
Brazilin
Orcein
Orcein
Transitional epithelium refers to:
Endothelium
Urothelium
Mesothelium
Metaplasia
Urothelium
Which of the following histological features is unique to cardiac muscle?
Cross-striations
Peripherally located nuclei
Intercalated discs
Non-branching fibers
Intercalated discs
In addition to its ability to stain argentaffin cell granules, the Fontana-Masson technique may also be used to stain:
Lipids
Collagen
Melanin
Spirochetes
Melanin
A delicate three-dimensional connective tissue meshwork that forms the framework of organs, such as the spleen and lymph nodes, is made of:
Elastic fibers
Reticular fibers
Smooth muscle
Basement membrane
Reticular fibers
The connective tissue cells actively involved in wound healing are:
Plasma cells
Mast cells
Macrophages
Fibroblasts
Fibroblasts
An example of an exogenous pigment is:
Argentaffin
Melanin
Chromaffin
Carbon
Carbon
The staining method considered to be most sensitive and specific for COPPER is the:
Chloranilic acid
Rhodanine
Orcein
Aldehyde fuchsin
Rhodanine
The nerve process carrying electrical impulses away from the cell body is called a(n):
Neuron
Dendrite
Synapse
Axon
Axon
Dendrites bring electrical signals to the cell body and axons take information away from the cell body.
Hemosiderin, hemoglobin, and bile pigment are classified as:
Endogenous pigments
Artifact pigments
Exogenous pigments
Extraneous pigments
Endogenous pigments
Malignant tumors of connective tissue are known as:
Carcinomas
Lipomas
Sarcomas
Fibromas
Sarcomas
A rhabdomyosarcoma (malignant tumor, skeletal muscle) is suspected in a biopsy submitted to the laboratory. To aid in making a definitive diagnosis, a helpful stain would be the:
Phosphotungstic acid-hematoxylin (PTAH)
Gomori aldehyde fuchsin
Verhoeff-van Gieson
Periodic acid Schiff
Phosphotungstic acid-hematoxylin (PTAH)
The use of mounting media makes stained tissue components more visible by:
Distinguishing only the nuclei
Distinguishing only the cytoplasm
Destaining after hematoxylin
Improving the index of refraction
Improving the index of refraction
Neuritic plaques of Alzheimer’s disease consist of abnormal cell processes often in close proximity to deposits of:
Amyloid
Phospholipids
Neuromelanin
Astrocytes
Amyloid
A disorder involving excess iron deposition in tissues, with resultant TISSUE DAMAGE, is known as:
Hemosiderosis
Hemoglobinemia
Hemophilia
Hemochromatosis
Hemochromatosis
Start of renewal of Clinical Laboratory License:
October 1
November 1
December 1
January 1
October 1
Non–hospital based clinical laboratories shall file applications for renewal of LTO beginning on the FIRST DAY OF OCTOBER UNTIL THE LAST DAY OF NOVEMBER of the current year.
Which of the following can only be done in a tertiary category laboratory?
Crossmatching
Routine chemistry
Routine hematology
Special hematology
Special hematology
All are qualifications of the Board of Medical Technology, except:
-Filipino citizen
-Good moral character
-Qualified Pathologist, or a duly registered MT
-In practice of laboratory medicine or MT for at least 5 years prior to his appointment
-Not a member of the faculty of any MT school for at least 2 years prior to appointment
In practice of laboratory medicine or MT for at least 5 years prior to his appointment
In practice of laboratory medicine or MT for at least 10 years prior to his appointment.