Question

which of the following is the most common cause of macrocytic anemia?
acute blood loss
ra
b12 deficiency
iron deficiency

Explanation:

Macrocytic anemia is characterized by larger - than - normal red blood cells. Vitamin B12 deficiency impairs DNA synthesis in red blood cell precursors, leading to macrocytic anemia. Acute blood loss causes normocytic anemia. RA (rheumatoid arthritis) can cause anemia of chronic disease which is usually normocytic or microcytic. Iron deficiency causes microcytic anemia.

Answer:

C. B12 deficiency