PS is an 87-year-old male admitted to a hospital for stomach pain. He has mild breathing problems and complains of fatigue and chronic stomach upset, for which he takes a daily antacid. While hospitalized, a physician has determined that PS has megaloblastic anemia.
-Which of the following is least likely to cause PS's anemia?

Question

Quizplus · Accepted Answer

Megaloblastic anemia is primarily caused by a deficiency in folate or vitamin B12. Reduced intrinsic factor production, lack of dietary folate and vitamin B12 intake, and GI malabsorption can all contribute to this type of anemia. However, lack of dietary iron intake is not directly related to megaloblastic anemia as it is more commonly associated with microcytic anemia.

PS Is an 87-Year-Old Male Admitted to a Hospital for Stomach