This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
All of the following are characteritic features of treatment of iron deficiency anemia with oral iron supplements except 
Select and explain. 
A. If 200 -300mg elemental iron is consumed about 50 mg is absorbed, B. The propoion of iron absorbed reduces as hemoglobin improves, C. The reticulocyte count should begin to increase in two weeks and peak in 4 weeks -this suggests good response to treatment, D. The treatment should be discontinued immediately once hemoglobin normalizes to prevent side effects of iron
D: The treatment should be discontinued immediately once hemoglobin normalizes to prevent side effects of iron
Answer: D: The treatment should be discontinued immediately once hemoglobin normalizes to prevent side effects of iron 
Explanation: Refer Katzung 11/e p571 A normal individual without iron deficiency absorbs 5-10 percnt of iron In an iron deficienct individual about 50-100mg of iron can be incorporated into hemoglobin daily The reticulocyte count should begin to increase in two weeks