Nationally Registered Certified Medical Assistant (NRCMA) (NAHP) Practice Exam

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Study for the Nationally Registered Certified Medical Assistant Exam. Prepare with interactive quizzes and multiple-choice questions that come with helpful hints and explanations. Get ready to earn your certification with confidence!

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What is serum?

  1. The clotting factor of blood

  2. Red blood cells

  3. The liquid portion of whole blood after clotting

  4. White blood cells

The correct answer is: The liquid portion of whole blood after clotting

Serum is the liquid portion of whole blood after clotting. This means that option A and D are incorrect, as serum does not contain clotting factors or white blood cells. Option B is also incorrect, as red blood cells are not part of the liquid portion of blood.

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