Practice Quiz

CCNS Certified Clinical Nurse Specialist

Category - Pediatrics

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Which of the following is true about plasma?
  1. It functions to transport hormones, ions, and nutrients throughout the body
  2. It makes up nearly 22% of the blood
  3. It may contain 10% or less of waste products
  4. It comprises tissue macrophages derived from monocytes
Explanation
Answer - C - The fact that is true about plasma is that it may contain 10% or less of waste products. Plasma contains serum (the liquid portion of blood (90%)), plasma proteins, coagulation factors (fibrinogen), and some nutrients, enzymes, gases, and waste products (10%). Option A is a function of the blood. Option B is incorrect, as plasma comprises 78% of the blood. Option D is true of reticuloendothelial system.
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