Hematology Flashcards
Select the needle most commonly used in
standard venipuncture in an adult:
a. One inch, 18 gauge
b. One inch, 21 gauge
c. One-half inch, 21 gauge
d. One-half inch, 25 gauge
B.
Placement of fire extinguishers every ____feet.
a. 75 feet
b. 100 feet
c. 125 feet
d. 150 feet
A.
The most common complication encountered in obtaining a blood specimen; it is caused by leakage of a small amount of blood in the tissue around the puncture site:
a. Petechiae
b. Hematoma
c. Ecchymosis
d. Hemoconcentration
C.
The recommended cleaner for removing oil
from objectives is:
a. Benzene
b. Xylene
c. Water
d. 70% alcohol or lens cleaner
D.
True for PRECISION:
a. Measure of agreement between
an assay value and the theoretical “true
value” of its analyte
b. Magnitude of error separating the assay result from the true value
c. Easy to define but difficult to establish and maintain
d. Relatively easy to measure and maintain
D.
All of the following are examples of pre-
analytical errors, except:
a. Specimen, obtained from the wrong
patient
b. Specimen collected in the wrong tube or
container
c. Improper processing of specimen
d. Wrong assay performed
D.
EDTA is used in concentrations of ____ mg/mI
whole blood
a. 0.5 mg/1 mL of whole blood
ng/ml
b. 1 mg/1mL of whole blood
c. 1.5 mg/1 mL of whole blood
d. 2 mg/1 mL of whole blood
C.
Cardiovascular complications include
1. Orthostatic hypotension
2. Syncope/passing out
3. Shock
4. Cardiac arrest
a. 1,2
b. 3,4
c. 1,2,3
d. 1,2,3,4
D
Complications include diaphoresis, seizure
and pain:
a. Vascular complications
b. Cardiovascular complications
c. Neurological complications
d. Dermatological complications
C.
In the tetraploid DNA is checked for proper replication and damage takes approximately 4 hours.
a. G1
b. S
c. G2
d. GO
C.
All of the following statements refers to
APOPTOSIS, except:
a. Enlarged cell size due to swelling
b. Reduced cell size due to shrinkage
c. Condensation and fragmentation of the
nucleus between nucleosomes
d. Mostly physiologic to remove unwanted
cells
A.
Stage in maturational sequence of red blood
cells where detectable hemoglobin synthesis
occurs.
a. Polychromatic normoblast
b. Basophilic normoblast
c. Orthochromic normoblast
d. Reticulocyte
B.
Hemoglobin appears for the first time in
which maturational sequence of RBC?
a. Rubriblast(pronormoblast)
b. Prorubricyte (basophilic normoblast)
c. Rubricyte (polychromatophilic normoblast)
d. Metarubricyte (orthochromic normoblast)
C.
If first detectable hemoglobin synthesis- Basophilic normoblast
If appears first time- Polychromatophilic normoblast
Tertiary granules of the neutrophils are formed during the:
a. Promyelocyte stage
b. Myelocyte and metamyelocyte stage
c. Metamyelocyte and band stage
d. Band and segmented neutrophil stage
C.
This pathway prevents denaturation of
globin of the hemoglobin molecule by
oxidation:
a. Embden-Meyerhof pathway
b. Hexose-monophosphate shunt
C. Methemoglobin reductase pathway
d. Luebering-Rapoport pathway
B.
RBCs inclusions, 0.2 to 2.0 mm in size, that
can be seen with a stain such as crystal violet
or brilliant cresyl blue: represent precipitated, denatured hemoglobin and are clinicallv associated with congenital hemolytic anemia, G6PD deficiency, hemolytic anemias secondary to drugs such phenacetin, and some hemoglobinopathies.
a. Hemoglobin C crystals
b. Heinz bodies
C. Howell-Jolly bodies
d. Pappenheimer bodies
B.
Nuclear remnants predominantly composed
of DNA; believed to develop in periods of
accelerated or abnormal erythropoiesis,
because the spleen cannot keep upwith
pitting these remnants from the cell. Its presence is associated with hemolytic anemias, pernicious anemia, and particularly
post-splenectomy, physiological atrophy of
the spleen.
a. Basophilic stippling
b. Heinz bodies
c. Howell Jolly bodies
d. Pappenheimer bodies
C.
Anemias with low MCV and MCHC;
microcytic, hypochromic RBCs, EXCEPT:
a. Iron deficiency anemia
b. Thalassemia
C. Sideroblastic anemia
d. Leukemia
D.
The most severe state of erythrocytic
abnormality, with the abnormality prevalent
throughout each microscopic field; comparable terms are marked or marked increase.
a. 2+
b. 3+
C. 4+
d. 5+
C.
Sezary cell is an example of
a. T cell
b. B cell
c. Plasma cell
d. Monocyte
A.
Inherited hemolytic anemia due to membrane defect:
a. Thalassemia
b. Sickle cell anemia
C. Pyruvate kinase deficiency
d. Hereditary stomatocytosis
D.
All of the following are defects of hemoglobin molecule, except:
a. Hgb C disorder
b. Thalassemia
c. Hgb SC disorder
d. Hereditary spherocytosis
D.
Immature WBC with elongated and curved
nucleus, and very clumped chromatin:
a. Myelocyte
b. Metamyelocyte
c. Band
d. Segmented neutrophil
C.
Myelocyte- slightly clumped nucleus
Metamyelocyte- clumped nucleus
Band- Very clumped nucleus
Segmented- Densely packed nucleus
Stage in maturational sequence of WBC with
indented nucleus and clumped chromatin:
a. Promyelocyte
b. Myelocyte
c. Metamyelocyte
d. Band
C.