Fun Quiz: Test Your Urinalysis & Body Fluids Knowledge

#1. High levels of ascorbic acid or vitamin C may cause a false negative result on the following urine analytes except

Bilirubin

Ketones

Urobilinogen

Blood

Glucose

#2. Crystals appearing as flat needle-like structures that are often brown in color. These are associated with the use of a certain antibiotic medication

Sulfonamide

Cystine

Radiographic dyes

Tyrosine

Leucine

#3. Tiny structures usually formed by deposits of protein (or other substances) on the walls of renal tubes

Crystals

Yeast cells

Mucus threads

Renal tubular cells

Casts

#4. Transparent, clear casts that are often hard to see in urine; should be examined under subdued lighting

Fatty casts

WBC casts

Hyaline casts

Granular casts

RBC casts

#5. An elevated urine urobilinogen and a negative test for urine bilirubin may indicate which of the following conditions?

Hemolytic disease

Acute hepatic toxicity

Urinary tract infection

Biliary obstruction

#6. Which of the following changes is not associated with stored urine sediment?

Growth of bacteria

Loss of red cells

Loss of amorphous deposits and crystals

Loss of casts

Loss of white cells

#7. The following causes polyuria except

Burns

Diuretic use

Caffeine

Diabetes insipidus

Diabetes mellitus

#8. Which of the following statements on Ropes Clot Test is false

A few drops of synovial fluid is added to acetic acid to form a clot

It is a test that reflects the polymerization of synovial fluid hyaluronate

Good clot formation occurs in a variety of inflammatory conditions

It is a bedside test for evaluating synovial fluid–SF viscosity or quality of the synovial fluid mucin clot,

#9. Abnormal urinary crystals are most likely to be seen in which of the following urine specimens

pH 8.0

Specific gravity of 1.010

pH 7.0

pH 5.0

#10. The following statements are true of ghost cells except

Very difficult to visualize with brightfield microscopy

Occurs more often in alkaline urine

Remaining red cell membrane after hemolysis

Occurs in concentrated or hypertonic urine

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