Medical Laboratory Technician Exam Medical Laboratory Technician Urinalysis and Body Fluids Questions and Answers 3

Question 1

Which crystal found in acidic urine appears as a hexagonal flat plate and is associated with an inherited metabolic disorder?

Accepted Answer

Cystine

Answer

Uric acid

Answer

Calcium oxalate

Answer

Amorphous urates

Question 2

In a manual cell count of cerebrospinal fluid, the total WBC count is performed using which diluent?

Accepted Answer

Acetic acid with methylene blue

Answer

Normal saline

Answer

Turk's solution diluted 1:100

Answer

Distilled water with crystal violet

Question 3

A urine specimen that turns dark brown-black upon standing most likely contains which substance?

Accepted Answer

Homogentisic acid

Answer

Bilirubin

Answer

Urobilinogen

Answer

Porphyrins

Question 4

What is the clinical significance of finding oval fat bodies in a urine sediment?

Accepted Answer

Nephrotic syndrome with lipiduria

Answer

Acute tubular necrosis

Answer

Lower urinary tract infection

Answer

Renal calculi

Question 5

Which body fluid analysis finding is most characteristic of a traumatic lumbar puncture rather than a subarachnoid hemorrhage?

Accepted Answer

Decreasing RBC count in successive collection tubes

Answer

Xanthochromic supernatant

Answer

Uniform RBC count across all tubes

Answer

Elevated D-dimer in CSF

Question 6

Which reagent strip test uses a diazo reaction to detect a specific substance in urine?

Accepted Answer

Bilirubin

Answer

Glucose

Answer

Protein

Answer

Ketones