National Center For Competency Testing (NCCT) Practice Exam

Which QC measure is within the phlebotomist's scope of practice?

Calibrating the chemistry analyzer Daily maintenance on the laboratory hematology instruments Checking the expiration dates of venipuncture supplies None of the above

Correct Answer:

Checking the expiration dates of venipuncture supplies

Explanation:

Phlebotomists focus on the pre-analytical phase to protect specimen quality. Checking expiration dates on venipuncture supplies fits this scope because it directly ensures the materials used for collection are valid and won't compromise the specimen or test results. Using expired tubes, additives, or supplies can affect specimen integrity and lead to unreliable results, which is something a phlebotomist is responsible for preventing. Calibrating a chemistry analyzer and performing daily maintenance on hematology instruments are instrument QC tasks that require specialized training and certification in laboratory technology, and they are outside the phlebotomist’s typical duties. Therefore, the task within the phlebotomist’s scope is checking expiration dates.

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