Certified Medical Assistant Diagnostic Testing and Laboratory Procedures Questions and Answers Flashcards
6 cards from real CMA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Certified Medical Assistant Diagnostic Testing and Laboratory Procedures Questions and Answers flashcards as text
Which tube color is used for a complete blood count (CBC)?
Answer: Lavender (EDTA)
The lavender-top tube contains EDTA, an anticoagulant that preserves cell morphology for CBC testing.
What is the correct order of draw when collecting multiple blood tubes via venipuncture?
Answer: Light blue, red/SST, green, lavender
The standard order of draw is: light blue, red/SST, green, lavender, gray to prevent cross-contamination of additives.
Which of the following is the BEST site for a capillary puncture in an adult?
Answer: The fingertip (lateral aspect of the third or fourth finger)
The lateral aspect of the third or fourth fingertip is the preferred adult capillary puncture site because it has good blood flow and less pain.
A urine dipstick test showing a positive result for nitrites most likely indicates:
Answer: Bacterial urinary tract infection
Nitrites in urine are produced by bacteria (especially gram-negative organisms) and are a strong indicator of a UTI.
Which of the following actions should be performed BEFORE collecting a midstream clean-catch urine specimen?
Answer: Instruct the patient to cleanse the urethral area, void briefly, then collect mid-stream
Proper clean-catch technique requires cleansing the perineal area and discarding the initial urine stream to reduce contamination.
What is the normal fasting blood glucose range for an adult?
Answer: 70–99 mg/dL
A normal fasting blood glucose is 70–99 mg/dL; values of 100–125 indicate prediabetes, and ≥126 indicates diabetes.