Clinical Microscopy Practice Test
Comprehensive Exam Questions & Verified Answers |
Urinalysis, Body Fluids & Laboratory Diagnostics
Review | 2026–2027
,A discrepancy between the urine SG determined by C. After an intravenous pyelogram (IVP)
measuring refractive index and urine osmolality would be
most likely to occur in:
A. After catheterization of the urinary tract
B. In diabetes mellitus
C. After an intravenous pyelogram (IVP)
D. In uremia
Urine with an SG consistently between 1.002 and 1.003 C. Diabetes insipidus
indicates:
A. Acute glomerulonephritis
B. Renal tubular failure
C. Diabetes insipidus
D. Addison's disease
All of the following statements are true about Cryptoccocal C. The Lymphocyte count is over 2000
meningitis, except:
A. An India Ink preparation is positive
B. A starburst pattern is seen on Gram stain
C. The Lymphocyte count is over 2000
D. A confirmatory immunology test is available
Grossly bloody pericardial fluid is caused by which of the B. Misuse of anticoagulant medications
following?
A. Increased WBCs
B. Misuse of anticoagulant medications
C. Chylous
D. (+) Crystals
SITUATION: What is the most likely cause of the following D. Acute bacterial meningitis
CSF results?
CSF glucose 20 mg/dL
CSF protein 200 mg/dL
CSF lactate 50 mg/dL
A. Viral meningitis
B. Viral encephalitis
C. Cryptococcal meningitis
D. Acute bacterial meningitis
Normal for synovial fluid, except: B. >50,000 WBC/μL
A. Uric acid = equal to blood value
B. >50,000 WBC/μL
C. Total protein = <3 mg/dL
D. Both a and c
A broad spectrum of reactive and nonreactive lymphocytes D. Viral meningitis
in the CSF is associated with:
A. Bacterial meningitis
B. Fungal meningitis
C. Tubercular meningitis
D. Viral meningitis
True about synovial fluid: B. 1, 3 and 4
1. Surrounds all movable joints in the body
2. Found only in the knee
3. Acts as lubricant
4. Supplies nourishment to cartilage
A. 1 and 3
B. 1, 3 and 4
C. 2, 3 and 4
D. 1, 2 and 3
, Correct matches regarding synovial fluid: C. 1, 2, and 3
1. Normal= clear, pale yellow
2. Crystals= milky
3. Traumatic tap= blood streaks
4. Sepsis= uniform blood
A. 1 and 3
B. 1, 3, and 4
C. 1, 2, and 3
D. All of the above
In the ropes, or mucin clot, test, normal synovial fluid: B. Forms a solid clot when added to glacial acetic acid
A. Forms as a solid clot when added to hyaluronidase
B. Forms a solid clot when added to glacial acetic acid
C. Forms a friable clot when added to hydrochloric acid
D. Does not form a clot when added to glacial acetic acid
Examination of synovial fluid under direct polarized light B. Monosodium urate showing (-) birefringence
reveals intracellular needle-shaped crystals that appear
white against the black background. When a red
compensator is added and the crystals are aligned with the
slow vibration, they appear yellow against the red
background. These crystals are:
A. Monosodium urate showing (+) birefringence
B. Monosodium urate showing (-) birefringence
C. Calcium pyrophosphate showing (+) birefringence
D. Calcium pyrophosphate showing (-) birefringence
Effusions produced by conditions that directly affect the B. Exudates
serous membranes are termed:
A. Transudates
B. Exudates
C. Both of these
D. None of these
A milky pleural fluid becomes clear after extraction with A. Chylous material from thoracic duct leakage
ether. This fluid contained:
A. Chylous material from thoracic duct leakage
B. Pseudochylous material from thoracic duct leakage
C. Chylous material inflammation
D. Pseudochylous material from inflammation
These crystals are rare, occurring as yellow, oily-appearing D. Leucine
spheres with radial and concentric striations. They are
soluble in both acids and alkalis.
A. Tyrosine
B. Cholesterol
C. Cysteine
D. Leucine
A Watson- Scwartz test is performed on a urine specimen. A. Urobilinogen
The following results are seen:
Chloroform tube: red color in the bottom layer
Butanol tube: red color in the top layer
These result indicate the presence of:
A. Urobilinogen
B. Urobilinogen and other Ehrlich-reactive substances
C. Phorphobilinogen and other Ehrlich-reactive substances
D. Phorphobilinogen
Comprehensive Exam Questions & Verified Answers |
Urinalysis, Body Fluids & Laboratory Diagnostics
Review | 2026–2027
,A discrepancy between the urine SG determined by C. After an intravenous pyelogram (IVP)
measuring refractive index and urine osmolality would be
most likely to occur in:
A. After catheterization of the urinary tract
B. In diabetes mellitus
C. After an intravenous pyelogram (IVP)
D. In uremia
Urine with an SG consistently between 1.002 and 1.003 C. Diabetes insipidus
indicates:
A. Acute glomerulonephritis
B. Renal tubular failure
C. Diabetes insipidus
D. Addison's disease
All of the following statements are true about Cryptoccocal C. The Lymphocyte count is over 2000
meningitis, except:
A. An India Ink preparation is positive
B. A starburst pattern is seen on Gram stain
C. The Lymphocyte count is over 2000
D. A confirmatory immunology test is available
Grossly bloody pericardial fluid is caused by which of the B. Misuse of anticoagulant medications
following?
A. Increased WBCs
B. Misuse of anticoagulant medications
C. Chylous
D. (+) Crystals
SITUATION: What is the most likely cause of the following D. Acute bacterial meningitis
CSF results?
CSF glucose 20 mg/dL
CSF protein 200 mg/dL
CSF lactate 50 mg/dL
A. Viral meningitis
B. Viral encephalitis
C. Cryptococcal meningitis
D. Acute bacterial meningitis
Normal for synovial fluid, except: B. >50,000 WBC/μL
A. Uric acid = equal to blood value
B. >50,000 WBC/μL
C. Total protein = <3 mg/dL
D. Both a and c
A broad spectrum of reactive and nonreactive lymphocytes D. Viral meningitis
in the CSF is associated with:
A. Bacterial meningitis
B. Fungal meningitis
C. Tubercular meningitis
D. Viral meningitis
True about synovial fluid: B. 1, 3 and 4
1. Surrounds all movable joints in the body
2. Found only in the knee
3. Acts as lubricant
4. Supplies nourishment to cartilage
A. 1 and 3
B. 1, 3 and 4
C. 2, 3 and 4
D. 1, 2 and 3
, Correct matches regarding synovial fluid: C. 1, 2, and 3
1. Normal= clear, pale yellow
2. Crystals= milky
3. Traumatic tap= blood streaks
4. Sepsis= uniform blood
A. 1 and 3
B. 1, 3, and 4
C. 1, 2, and 3
D. All of the above
In the ropes, or mucin clot, test, normal synovial fluid: B. Forms a solid clot when added to glacial acetic acid
A. Forms as a solid clot when added to hyaluronidase
B. Forms a solid clot when added to glacial acetic acid
C. Forms a friable clot when added to hydrochloric acid
D. Does not form a clot when added to glacial acetic acid
Examination of synovial fluid under direct polarized light B. Monosodium urate showing (-) birefringence
reveals intracellular needle-shaped crystals that appear
white against the black background. When a red
compensator is added and the crystals are aligned with the
slow vibration, they appear yellow against the red
background. These crystals are:
A. Monosodium urate showing (+) birefringence
B. Monosodium urate showing (-) birefringence
C. Calcium pyrophosphate showing (+) birefringence
D. Calcium pyrophosphate showing (-) birefringence
Effusions produced by conditions that directly affect the B. Exudates
serous membranes are termed:
A. Transudates
B. Exudates
C. Both of these
D. None of these
A milky pleural fluid becomes clear after extraction with A. Chylous material from thoracic duct leakage
ether. This fluid contained:
A. Chylous material from thoracic duct leakage
B. Pseudochylous material from thoracic duct leakage
C. Chylous material inflammation
D. Pseudochylous material from inflammation
These crystals are rare, occurring as yellow, oily-appearing D. Leucine
spheres with radial and concentric striations. They are
soluble in both acids and alkalis.
A. Tyrosine
B. Cholesterol
C. Cysteine
D. Leucine
A Watson- Scwartz test is performed on a urine specimen. A. Urobilinogen
The following results are seen:
Chloroform tube: red color in the bottom layer
Butanol tube: red color in the top layer
These result indicate the presence of:
A. Urobilinogen
B. Urobilinogen and other Ehrlich-reactive substances
C. Phorphobilinogen and other Ehrlich-reactive substances
D. Phorphobilinogen
