1. What must be measured in iron deficiency? Functional iron (4), tissue iron supply (3), iron stores (2).
2. What is the distinctive method?
1. Functional iron - [Hb], RBC indices (MCV, MCH), RBC Zn protoporphyrim, serum transferrin receptor)
Tissue iron supply- serum iron, serum binding capacity, saturation of transferrin
Iron stores - serum ferritin and tissue biopsy (liver or bone marrow)