Nationally Registered Certified Medical Assistant (NRCMA) (NAHP) 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

What is serum?

The clotting factor of blood

Red blood cells

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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White blood cells

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