Phlebotomist Exam Prep

Category - Anatomy & Physiology

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In what part of blood is fibrinogen found?

Whole blood.
Plasma.
Serum.

Explanation

Answer: B - Plasma contains fibrinogen, essential to the clotting process. Plasma is a clear yellowish fluid; it contains the clotting factors necessary for clot formation. It makes up about 55% of the total blood volume. Serum is the fluid left when plasma is removed; it contains proteins, hormones, and electrolytes, but no clotting factors. Whole blood is contains all blood products.

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