CMA Certified Medical Assistant Diagnostic Testing and Laboratory Procedures Questions and Answers

Question 1

Which tube color is used for a complete blood count (CBC)?

Accepted Answer

Lavender (EDTA)

Answer

Red/gold

Answer

Green (heparin)

Answer

Light blue (citrate)

Question 2

What is the correct order of draw when collecting multiple blood tubes via venipuncture?

Accepted Answer

Light blue, red/SST, green, lavender

Answer

Lavender, red, light blue, green

Answer

Green, lavender, light blue, red

Answer

Red, light blue, lavender, green

Question 3

Which of the following is the BEST site for a capillary puncture in an adult?

Accepted Answer

The fingertip (lateral aspect of the third or fourth finger)

Answer

The earlobe

Answer

The heel

Answer

The antecubital fossa

Question 4

A urine dipstick test showing a positive result for nitrites most likely indicates:

Accepted Answer

Bacterial urinary tract infection

Answer

Diabetes mellitus

Answer

Kidney stones

Answer

Dehydration

Question 5

Which of the following actions should be performed BEFORE collecting a midstream clean-catch urine specimen?

Accepted Answer

Instruct the patient to cleanse the urethral area, void briefly, then collect mid-stream

Answer

Collect the first portion of urine

Answer

Have the patient drink 2 liters of water immediately before collection

Answer

Refrigerate the container for 30 minutes

Question 6

What is the normal fasting blood glucose range for an adult?

Accepted Answer

70–99 mg/dL

Answer

40–70 mg/dL

Answer

100–125 mg/dL

Answer

126–200 mg/dL