Which fixative is commonly used for Pap smear slide preservation?
Anonymous Quiz
22%
A) Formalin
67%
B) Ethanol-based fixative
8%
C) Methanol
3%
D) Glutaraldehyde
Which finding in urine sediment is most specific for glomerular disease?
Anonymous Quiz
31%
A) Erythrocyte casts
5%
B) Bacteria
54%
C) Calcium oxalate crystals
10%
D) Uric acid crystals
Which antibody is commonly implicated in hemolytic disease of the fetus and newborn due to the Rh(D) antigen?
Anonymous Quiz
9%
A) Anti-A
14%
B) Anti-B
76%
C) Anti-D (Rh)
2%
D) Anti-Kell
What is the primary purpose of Westgard rules in internal quality control?
Anonymous Quiz
5%
A) To set unit conversion factors
84%
B) To identify outside the control limits and false rejection/acceptance
9%
C) To calibrate instruments
2%
D) To schedule maintenance
Which biosafety level requires work with human blood in risk group 2 agents, use of Class II biological safety cabinet, and restricted access?
Anonymous Quiz
11%
A) BSL-1
65%
B) BSL-2
19%
C) BSL-3
5%
D) BSL-4
❤1
Which test assesses platelet function rather than platelet number?
Anonymous Quiz
5%
A) CBC
88%
B) Platelet aggregation studies
6%
C) PT
2%
D) aPTT
Which parameter indicates the average volume of a red blood cell?
Anonymous Quiz
58%
A) MCV
12%
B) MCH
17%
C) MCHC
12%
D) RDW
A reticulocyte count is used to assess bone marrow response in anemia. If the reticulocyte percentage is elevated with anemia, which scenario is most likely?
Anonymous Quiz
7%
A) Decreased production
11%
B) Ineffective erythropoiesis
75%
C) Adequate marrow response with blood loss or hemolysis
7%
D) Iron deficiency
ALT is typically more liver-specific than AST. Which statement is true?
Anonymous Quiz
23%
A) AST higher in alcoholic liver disease
28%
B) ALT higher in alcoholic liver disease
49%
C) AST/ALT ratio > 2 indicates alcoholic liver disease
0%
D) ALT is not a transaminase
Which morphology and Gram reaction are typical for Staphylococcus aureus?
Anonymous Quiz
21%
A) Gram-positive cocci in chains
13%
B) Gram-negative diplococci
60%
C) Gram-positive cocci in clusters
6%
D) Gram-positive rods
In an indirect ELISA, what is the role of the secondary antibody?
Anonymous Quiz
16%
A) Binding antigen
46%
B) Detecting human antibodies
23%
C) Blocking non-specific sites
15%
D) Enzymatic substrate
Which dye provides blue-purple nuclear staining in standard H&E staining?
Anonymous Quiz
14%
A) Eosin
77%
B) Hematoxylin
6%
C) DAB
3%
D) Wright's stain
What is the primary purpose of a Levey-Jennings chart in clinical labs?
Anonymous Quiz
20%
A) Schedule instrument maintenance
73%
B) Track control results over time
5%
C) Record patient results
2%
D) Calibrate instrument
Which antibody is responsible for RhD antigen incompatibility?
Anonymous Quiz
2%
A) Anti-A
13%
B) Anti-B
81%
C) Anti-D
5%
D) Anti-K
Which statement correctly distinguishes calibration from verification?
Anonymous Quiz
7%
A) Calibration is for routine operation check
13%
B) Verification adjusts instrument to correct bias
78%
C) Calibration establishes instrument accuracy using standards
2%
D) Verification is not required for clinical equipment
What does the flammable symbol on a chemical label indicate?
Anonymous Quiz
13%
A) Health hazard
59%
B) Fire hazard
20%
C) Acute toxicity
8%
D) Corrosive
Frozen section is used intraoperatively to provide rapid diagnosis by performing...
Anonymous Quiz
2%
A) Immunostaining
38%
B) Formalin-fixed paraffin embedding
59%
C) Rapid histologic evaluation on frozen tissue
2%
D) Electron microscopy
❤1
Which test is used as a screening test for systemic autoimmune diseases and can show homogeneous, speckled, nucleolar patterns?
Anonymous Quiz
5%
A) RF
87%
B) ANA by indirect immunofluorescence
5%
C) CRP
3%
D) Complement levels
Which CSF finding is most suggestive of bacterial meningitis?
Anonymous Quiz
3%
A) Normal glucose
82%
B) Elevated protein with low glucose
14%
C) Lymphocytic predominance
2%
D) Normal cell count
In Kirby-Bauer disk diffusion, what does a larger zone of inhibition indicate?
Anonymous Quiz
6%
A) Higher bacterial resistance
19%
B) Lower antibiotic effectiveness
73%
C) Higher susceptibility of bacteria to the antibiotic
1%
D) Higher inoculum