A lady in the second trimester underwent a hemogram and her hemoglobin was found to be 6mg%. The gynaecologist suggested for IV transfusion of packed red cells to improve the level.

How much of iron is absorbed by transfusion of 2 units of packed red cells?: (A) 2gm, (B) 2mg, (C) 1gm, (D) 500mg
Answer is D. None