Phlebotomy Technician Practice Exam (NCPT/CPT)

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Prepare effectively for the NCPT/CPT Phlebotomy Technician Exam. Utilize flashcards and multiple-choice questions with hints and explanations to excel in your exam.

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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Within how many seconds of draw should the Vacutainer blood tube be mixed?

  1. 10 seconds

  2. 20 seconds

  3. 30 seconds

  4. 40 seconds

The correct answer is: 30 seconds

After drawing blood into the Vacutainer tube, it is important to mix the blood and anticoagulant additive within the recommended time frame to prevent clotting or hemolysis. According to most guidelines and manufacturers, this recommended time frame is 30 seconds. Therefore, options A, B, and D are incorrect as they are not within the recommended range. Failing to mix the blood within 30 seconds may result in inaccurate test results and potentially lead to misdiagnosis or incorrect treatment.