RECALLS MICRO Flashcards
Part of the virus in which the envelope is required.
Nuclear/Cytoplasmic membrane
Eosinophilic cytoplasmic inclusions are elementary bodies of ___virus.
Poxvirus
Incubation period for fungi that grow on blood.
28 days
Parasites that have neither a cyst form. (2)
Dientamoeba fragilis
Trichomonas vaginalis
Roundworm that inhabits small intestine and usually demonstrated as rhabditoform larva.
Strongyloides stercoralis
Calcium alginate swab is used for spx taken fr. nasopharynx for the isolation of ______.
Corynebacterium diphtheriae
Used to isolate S.aureus from stool cultures.
Medium with 7.5%salt.
These are used as counterstain for acid fast staining.
Malachite green
Methylene blue
2 examples of anaerobic bacteria.
Veilonella
Actinomyces
+ result for bile solubility test
Lysis of the semisolid media
This bacteria does not contain a capsule.
N.meningitidis
Bacteria that produces Babes-Ernst granules.
C.diptheriae
How to prepare an agar medium?
Half water ➡️ Agar ➡️ Half water
Composition of IODOPHORE
Iodine + Detergent
Composition of TINCTURE OF IODINE
Iodine + alcohol
Type of plasma used for Tube Coagulase test
RABBIT OR HUMAN PLASMA
Lecithinase (+)
BULL’S EYE HEMOLYSIS
C.perfringens
Lowest concentration of drugs that inhibits bacterial growth.
MIC
Min. Inhibitory Concentration
Lowest concentration of drugs that kills/destroys organisms.
MLC
Min. Lethal Concentration
Gram neg, COFFEE-BEAN shaped diplococci with adjacent sides flattened
NEISSERIA spp.
Appropriate spx’s for culturing N.gonorrhea: (5)
(GREVO) Gastric fluid Rectum Eyes Vaginal discharge Oral Cavity
Grows on CYSTEINE TELLURITE AGAR
C.diptheriae
CA of WHOOPING COUGH
Bordatella pertussis
It inhibits growth of gram pos and fungi in MAC agar.
BILE Salt
C.albicans mouth infection
THRUSH
Parasite that possess rhabditiform larva in stool.
S.stercoralis
Types of Plasmodium which accounts for 90% of cases (2)
P.vivax
P.falciparum
Example of an ECTOPARASITE
CRABS 🦀
Most predominant form of Plasmodium causing MALARIA IN THE WORLD
Vivax
Most predominant form of Plasmodium causing MALARIA IN THE PHILIPPINES
Falciparum
Agent of GAY BOWEL SYNDROME
Giardia lamblia
3rd Taenia spp
Asiatica
*common name: Taiwan Taenia
Taenia spp having a uterus that is DICHOTOMOUS / TREE-LIKE BRANCHES 🌲
T.saginata
Taenia spp having a uterus that is DENDRITIC OR FINGER-LIKE 🤚
T.solium
The adult resembles the adult of SPIROMETRA
D.latum
Resembles the egg of P.westermani
D.latum
+ ctrl for ACETATE TEST
E.coli
Acetate test:
Incubation period
+ result
35’C for 7 days
BLUE
ACETAMIDE TEST
+ctrl
INCUBATION PERIOD
+result
Pseudomonas aeruginosa
35’C for 7 days
BLUE
MALONATE TEST \+ CRTL INCUBATION PERIOD \+ result - result
Salmonella
35’C for 7 days
BLUE +
GREEN/YELLOW -
Used in KATO-THICK Smear preparation
Cellophane paper soaked in mixture of GLYCERINE + MALACHITE GREEN/METHYLENE BLUE SOL’N
For detection of stipplings, how long will you need to prepare blood films after the blood is drawn?
30 MINS to 1Hr
Site of the preferred blood spx for blood smear for PROTOZOA
Finger puncture
Definitive host to Plasmodium
Female anopheles mosquito
Color of CHROMATID BODIES WITH TRICHROME STAIN
BRIGHT RED
Appearance of glycogen in the trophozoite after staining with trichrome stain.
Nucleus?
COLORLESS : glycogen
RED-PURPLE : Nucleus
Appearance of Charcot Leyden crystals in the trophozoite after staining with trichrome stain.
BRIGHT RED
Chromatoidal bodies of protozoan cysts in iodine
DO NOT STAIN
Stains used for: NAEGLERIA and ACANTHAMOEBA
H&E
WRIGHT’s stain
Destroyed by iodine
Trophozoites
Hexacanth embryo:
(Hymenolepis spp)
▪️polar filaments (+)
▪️polar filaments (-) lacks
H.nana (+)
H.diminuta (-)
The egg of ___ have hexacanth embryo in a radially striated shell
Taenia
2nd IH of D.latum
FRESH WATER CRABS
CRAYFISHES
Method for recovery of eggs of S.japonicum and S.mansoni
Rectal biopsy
These are HERMAPHRODITIC
Flukes
Tapeworms
Nematode parasites capable of HEART LUNG MIGRATION
ASH
A.lumbricoides
S.stercoralis
Hookworms
“Unholy three” or “Triad of Infection”
HAT
Hookworms
A.lumbricoides
T.trichura
Ag that is cross-reactive in ALL ADENOVIRUSES
Hexon
CA of Farmer’s Lungs
Aspergillus
Media used to ID C.albicans through the organisms’ CHLAMYDOSPORES production
CORNMEAL AGAR PLUS TWEEN 80
C.albicans produces (3)
BLASTOSPORES
CHLAMYDOSPORES
PSEUDOHYPHAE
Stain in AMAN STAIN
The most common fungal stain
LPCB
Setting of RPMs marked on the face of the RHEOSTAT CTRL ON THE CENTRIFUGE. Checking?
Monthly
Checking of:
CATALASE
OXIDASE
COAGULASE
Once each day of use
When vial is 1st used
THIOGLYCOLLATE broth is boiled for ___ mins to?
10 mins
Drive off O2
Clear medium for MYCOBACTERIA
Middlebrook 7H11
Bordatella spp with is both UREASE AND OXIDASE +
B.bronchiseptica
Preferred medium for the isolation of B.pertussis
CHARCOAL-CEPHALEXIN AGAR
Inhibitors in SALMONELLA-SHIGELLA AGAR (2)
Bile salts
Brilliant green
Methods for testing Beta lactamase (3)
Chromogenic-Cephalosporin Mtd
Acidometric mtd
Iodometric mtd
Transcribe PPNG
Penicillinase-Producing Gonococci
ZOI:
SENSITIVE FOR OPTOCHIN DISK TEST (Taxo P)
For Bacitracin Disk Test
(Taxo A)
> |= 14mm (taxo P)
Any ZOI = Sensitive
Most common pathogen in throat cultures.
GROUP A Strep (S.pyogenes)
Staph that is DNAse:
+
-
S.aureus
S.epidermidis
Carrier used in COAGGLUTINATION by staph.
Staphylococcal PROTEIN A
Can be used for Serotyping by swelling
Capsule
Milk is considered as GRADE A if the bacterial ct is _____ per mL when RAW and not exceed ____ bacteria per mL once pasteurized
75K
15K
Stain used to demonstrate spores
Schaeffer-Fulton
Nasopharyngeal swab spx is recommended for detection of (3)
B.pertussis
N.meningitidis
H.influenzae
Virus that can cause SHINGLES
VZV
Culture media for Fungi (3)
SBA
POTATO DEXTROSE AGAR
CORNMEAL AGAR
Broad spectrum antibiotics
Act against…
- gram pos
- gram neg
- Bacterial and non bacterial
Number of nuclei of mature cyst of Entamoeba polecki
1
Heat resistant fungi commonly associated as FOOD CONTAMINANT
Aspergillus
Parasite that has characteristic AUTO-FLUORESCENCE
Cyclospora cayetanensis
Organism having grayish white, transparent to translucent, matte or glossy colonies with a large ZONE OF BETA HEMOLYSIS
Group A (S.pyogenes)
Types of blood for the detection of microfilaria are (2)
CAPILLARY
ARTERIAL
Proglottid filled with eggs
Gravid
Virus that can affect CNS
RABIES
Most common mtd for toxoplasma detection
Detect specific ab
Continent where Chagas Dse was 1st discovered
America
Transcribe ToRCHeS
Toxoplasma gondii Rubella CMV HERPES HEPATITIS SYPHILIS
This stains CELL WALL of fungi
Calcoflour white
Obligate microaerophiles
Campylobacter
Helicobacter
Coccidia that can be contacted from cats
Toxoplasma gondii
Mechanical/phoretic vector or carrier of Ascaris eggs
Cockroaches
Toxic to viruses
Toxic to Neisseria spp
Toxic to Chamydia spp
Calcium alginate swab - ✖️viruses
Cottons swab - ✖️ Neisseria
Wood - ✖️Chlamydia
Chain of infection
Source
MOT
Susceptible Host
Appropriate ratio of blood:broth for BLOOD CULTURE
1:5
MOT OF HTLV I and II
Blood
Serum
Saliva
Semen
S3B
Best types of water to prepare an agar medium are:
Deionized
Distilled
Is rejected for the the dx of RSV
Stool
Test used to determine C.tetani
Morphology
Tennis racket; lollipop; DRUMSTICK
AFB FOUND IN NASAL MUCOSA
Not dx’c - NF
Dx’C lab media (agar) for bacterial isolation has pH of
7.0 to 7.5
Test used to diff. S pyogenes and S.pneumoniae from other strep.
Hemolysis test
Beta - S.pyogenes
Alpha - S.pneumoniae
A tests used to diff.
Listeria
Corynebacteria
BILE ESCULIN HYDROLYSIS TEST
MOTILITY TEST
LISTERIA +
CORYNEBACTERIA -
Filamentous bacteria which is the common source of making antibiotics
Streptomyces
Too much moisture in disk diffusion in growth in AST leads to:
Smaller ZOI
In SSA GIVE APPEARANCE OF:
Salmonella
Shigella
Salmonella:
▪️colorless colonies with Black centers ; H2S +
Shigella
▪️colorless colonies without Black centers ; H2S -
Best culture media for Salmonella culture: (3)
SSA
XLD
TETRATHIONATE
Sterilization in cans can kill:
endospores of:
▪️C.botulinum
▪️E.coli
And toxins
Concentration of H2O2 as DISINFECTANT
3%
Most ideal for GS/CS of ambulatory px
Random urine spx
Most ideal for GS/CS for BEDRIDDEN PX
Catheterized urine
Most ideal for GS/CS of WOMEN
Midstream clean-catch
Alternative disinfectant if Na hypochlorite (chlorox) is unavailable in the lab.
Vinegar (acetic acid)
Refers to the property to see the cellular details that are microscopically micrometers
Resolution
Can be ruled out in SBA Plate
Haemophilus (fastidious org: HACEK)
Bacitracin - R Hippurate hydrolysis test - neg Bile esculin hydrolysis - pos 6.5% NaCl - pos Beta hemolytic
Enterococcus
2 purpose of SIM (Sulfide Indole Motility)medium
▪️motility
▪️tryptophan medium
Soap is:
Germicidal
Microsporum that fluoresce on WOOD’s UV LAMP
M.canis
Agar for DERMATOPHYTES
Mycosel Agar
This qualifies sputum for culture
GS
Test that speciates Neisseria spp.
Sugar Utilization (CHO UTILIZATION TEST)
Bacteria causes UTI (3)
E.coli
S.saprophyticus
Enterococci
Complicate CYSTIC FIBROSIS PX (2)
P.aeruginosa
Burkholderia cepacia
Causes SWIMMER’S Ear and burns
P.aeruginosa
Acceptable spx for S.aureus
Nasal swab
Niacin +
Nitrate reduction +
Catalase -
MTB
Lecithinase +
Double zone of hemolysis
C.perfringens
Four bacteria that are INHIBITED BY SPS DISK TEST:
G.vaginalis
Neisseria
Streptobacillus moniliformis
Peptostreptococcus anaerobius
Phenylalanine Deaminase (PAD) +
Urease+
Lysine decarboxylase +
PPM
PROTEUS
PROVIDENCIA
MORGANELLA
Test that has a positive result of RED: (5)
INDOLE MR VP UREASE NITRATE
Test that has a positive result of GREEN, neg color of BLUE: (4)
CAMA
Citrate
Acetamide
Malonate
Acetate utilization tests
Test that has a positive result of PURPLE: (4)
L2OH
LIA
LOA (decarboxylase)
Oxidase
hippurate hydolysis
Test that has a positive result of YELLOS: (3)
TOT
TSI
ONPG
TCBS (thiosulfate-citrate-bile salt-sucrose)
Salmonella spp that is LYSINE & H2S neg
S.paratyphi A
Test that diff Enterobacteriaciae
IMViC
Doesn’t grow on MAC: (3)
MEK
Moraxella
Eikenella corrodens
Kingella kingae
Pigment producer and causes grape-like odor on CETRIMIDE AGAR
P.aeruginosa
Pigment produced by P.aeruginosa
Pyocyanin
Pyoverdin
Pyorubin
Grows in CAP,
✖️MAC
✖️BAP
Haemophilus
Bacteria known for its requirement cysteine which causes lab acquired infxn : BSL III
Francisella tularensis
BSL I
My BaS
Mycobacterium gordonae
Bacillus subtilis
BSL II
Y Ba?
Yersinia pestis
B.anthracis
BSLIII
My FRiend BruMo
Mycobacteria
Francisella
Brucella
Molds
Can speciate Brucella spp.
Thionine
Fuchsin
Brucella spp
CO2 +
H2S +
Inhibited by THIONINE
B.abortus
“Safety pin” appearance in Wayson’s stain (bipolar bodies)
▪️ acquired through animal bite wounds
Pasteurella
Causes: ▪️MENINGITIS ▪️SEPSIS ▪️STILLBIRTH ▪️FOOD POISONING
Listeria
The ONLY GRAM POS BACILLUS
H2S +
Catalase -
“BUTCHER’s CUT”
Erysipelothrix rhusiopathiae
CA of PONTIAC FEVER (fr. Aircondition)
CM: BCYE
Legionella