CCMA Laboratory Procedures 3

Question 1

Under a microscope, which urine sediment finding is most associated with a urinary tract infection (UTI)?

Accepted Answer

White blood cell (WBC) clumps and bacteria

Answer

Hyaline casts

Answer

Waxy casts

Answer

Oval fat bodies

Question 2

When preparing a blood smear slide for microscopic examination, the smear should be:

Accepted Answer

Thin with a feathered edge and even distribution of cells

Answer

Thick and uneven to collect more cells

Answer

Air-dried in a vertical position

Answer

Prepared only from EDTA-anticoagulated blood stored for 24 hours

Question 3

Which type of urine cast is considered a normal finding in small numbers?

Accepted Answer

Hyaline casts

Answer

Granular casts

Answer

Waxy casts

Answer

RBC casts

Question 4

What is the purpose of centrifuging a urine specimen before microscopic examination?

Accepted Answer

To concentrate the formed elements (cells, casts, crystals) into a pellet for examination

Answer

To sterilize the urine sample

Answer

To measure the specific gravity

Answer

To remove bacteria before culturing

Question 5

A Gram stain that shows pink (red) rod-shaped organisms indicates:

Accepted Answer

Gram-negative bacilli

Answer

Gram-positive cocci

Answer

Gram-positive bacilli

Answer

Gram-negative cocci

Question 6

Which of the following is the proper procedure for disposing of a used lancet after a fingerstick glucose test?

Accepted Answer

Place it immediately into a puncture-resistant sharps container

Answer

Place it in the regular trash wrapped in gauze

Answer

Recap it and return it to the supply cabinet

Answer

Rinse it with water and place it in a biohazard bag

Question 7

What does a positive result on a urine pregnancy test (hCG) dipstick indicate?

Accepted Answer

The presence of human chorionic gonadotropin (hCG) in the urine

Answer

Elevated estrogen levels

Answer

A urinary tract infection

Answer

Ovulation is occurring