NAPLEX (North American Pharmacist Licensure Examination) Practice Exam

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Aplastic anemia is characterized by?

  1. Overproduction of RBCs

  2. Shortened RBC lifespan

  3. Failure of blood cell production in the bone marrow

  4. Excessive destruction of platelets

The correct answer is: Failure of blood cell production in the bone marrow

Aplastic anemia is a condition in which the bone marrow fails to produce enough blood cells. This can lead to low levels of red blood cells, white blood cells, and platelets. Option A is incorrect because aplastic anemia is not characterized by overproduction of any type of blood cell. Option B is incorrect because shortened RBC lifespan is not a defining feature of aplastic anemia. Option D is incorrect because platelet destruction is not a characteristic of aplastic anemia.

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