A nurse is teaching a client who has a new diagnosis of aplastic anemia. Which of the following information should the nurse include in the teaching?

A. Inability to absorb vitamin B12 is associated with pernicious anemia, not aplastic anemia. Pernicious anemia is caused by a lack of intrinsic factor leading to B12 deficiency. B. Increased rate of RBC destruction occurs in hemolytic anemias, where red blood cells are destroyed prematurely. Aplastic anemia is not caused by hemolysis. C. Decreased intake of iron can lead to iron-deficiency anemia, but aplastic anemia is not related to dietary iron deficiency. D. Decreased bone marrow production of RBCs is the hallmark of aplastic anemia. Aplastic anemia occurs when the bone marrow fails to produce adequate amounts of red blood cells, white blood cells, and platelets. This can result from autoimmune destruction, chemical exposure, certain medications, or idiopathic causes. The deficiency of all blood cell lines leads to symptoms such as fatigue, pallor, increased risk of infection, and bleeding tendencies.