CCMA - Certified Clinical Medical Assistant Phlebotomy and Specimen Collection Questions and Answers

Question 1

A medical assistant is preparing to draw blood for a coagulation study, a CBC, and a serum chemistry panel. Which of the following is the correct order of draw?

Accepted Answer

Light Blue, Red, Lavender

Answer

The correct order of draw is critical to prevent cross-contamination of additives between tubes, which can alter test results. The sequence is: 1) Blood cultures (sterile), 2) Light Blue (for coagulation studies), 3) Red/Gold/Tiger Top (for serum tests), 4) Green (for plasma chemistry), 5) Lavender/Pink (for hematology), and 6) Gray (for glucose/lactate). Therefore, for the requested tests, the light blue top tube must be drawn first for the coagulation study, followed by the red top for the serum chemistry, and finally the lavender top for the CBC.

Question 2

While performing a venipuncture, the patient suddenly complains of a sharp, shooting pain radiating down their arm. What is the most appropriate immediate action for the medical assistant to take?

Accepted Answer

Immediately withdraw the needle and apply pressure

Answer

A sharp, shooting, or electric-like pain during venipuncture is a sign of possible nerve damage. The needle should be removed immediately to prevent further injury. After removal, pressure should be applied to the site, and the incident must be documented and reported according to facility protocol.

Question 3

A medical assistant is performing a capillary puncture on a 6-month-old infant. Which of the following is the appropriate site for this procedure?

Accepted Answer

The medial or lateral aspect of the plantar surface of the heel

Answer

For infants under one year of age, the recommended site for a capillary puncture is the medial or lateral portion of the plantar surface (bottom) of the heel. Puncturing the center of the heel risks injury to the calcaneus (heel bone). The fingers are too small and have insufficient tissue depth, and the earlobe is no longer a recommended site due to lesser blood flow.

Question 4

Which of the following steps is essential to maintain the integrity of a specimen collected for a chain of custody drug screen?

Accepted Answer

Ensuring the specimen is sealed in the presence of the donor

Answer

A key principle of the chain of custody process is to ensure the specimen's integrity and prevent tampering. The specimen must be sealed with a tamper-evident seal in the presence of the donor. This action is documented on the Chain of Custody Form (CCF) and shows that the specimen was secured immediately after collection.

Question 5

A medical assistant is instructing a patient on the collection of a clean-catch midstream urine specimen. Which of the following instructions is correct?

Accepted Answer

Begin urinating into the toilet, then collect the middle portion of the stream in the cup.

Answer

The clean-catch midstream technique is designed to minimize contamination from the urethra. The patient should first cleanse the area properly. They should then begin to urinate into the toilet, which flushes out initial contaminants, and then, without stopping the flow, move the sterile container into the stream to collect the 'midstream' portion.

CCMA - Certified Clinical Medical Assistant Practice Test

CCMA - Certified Clinical Medical Assistant Practice Test

CCMA - Certified Clinical Medical Assistant Phlebotomy and Specimen Collection Questions and Answers