Medical Laboratory Technician Urinalysis and Body Fluids Questions and Answers

Question 1

A technologist examining a urine sediment under a microscope observes numerous small, round, colorless structures.
Some of these structures appear to be budding.
Which of the following actions would best differentiate yeast from red blood cells?

Accepted Answer

Add a drop of dilute acetic acid to the sediment.

Answer

Perform a Gram stain on the sediment.

Answer

Re-examine the sample using a polarizing microscope.

Answer

Check the reagent strip for a positive protein result.

Question 2

A cerebrospinal fluid (CSF) sample is received in the laboratory from a patient with a suspected subarachnoid hemorrhage. After centrifugation, the supernatant appears pale pink-yellow. This coloration is referred to as:

Accepted Answer

Xanthochromia

Answer

Pleocytosis

Answer

Hemolysis

Answer

Pellicle formation

Question 3

A urine reagent strip test is positive for bilirubin. Which of the following is the most appropriate confirmatory test for this finding?

Accepted Answer

Ictotest tablet test

Answer

Urobilinogen test

Answer

Specific gravity measurement

Answer

Sulfosalicylic acid (SSA) test

Question 4

A synovial fluid aspirate from a patient with acute joint pain is examined using compensated polarized light microscopy. The technologist observes strongly birefringent, needle-shaped crystals that appear yellow when aligned parallel to the slow axis of the compensator. These findings are characteristic of:

Accepted Answer

Monosodium urate (MSU) crystals

Answer

Cholesterol crystals

Answer

Calcium pyrophosphate dihydrate (CPPD) crystals

Answer

Corticosteroid crystals

Question 5

The presence of numerous waxy casts in a urine sediment analysis is most strongly associated with which of the following conditions?

Accepted Answer

Chronic end-stage renal disease

Answer

Acute pyelonephritis

Answer

Strenuous exercise

Answer

Urinary tract infection

Question 6

A post-vasectomy semen analysis is performed. The initial wet mount examination reveals no spermatozoa. What is the mandatory next step to confirm this finding?

Accepted Answer

Centrifuge the specimen and examine the pellet microscopically.

Answer

Report the result as azoospermic.

Answer

Request a new sample collected after a longer abstinence period.

Answer

Perform a sperm viability stain.

A technologist examining a urine sediment under a microscope observes numerous small, round, colorless structures.Some of these structures appear to be budding.Which of the following actions would best differentiate yeast from red blood cells?

A technologist examining a urine sediment under a microscope observes numerous small, round, colorless structures.
Some of these structures appear to be budding.
Which of the following actions would best differentiate yeast from red blood cells?