This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
All are true regarding Anaemia of Chronic Diseases, except 
Select and explain. 
A. Decreased serum Fe, B. Decreased Ferritin, C. Decreased Total Fe Binding Capacity, D. Increased Bone Marrow Fe
B: Decreased Ferritin
Answer: B: Decreased Ferritin 
Explanation: Serum ferritin levels are increased in anaemia of chronic disorder & is the most distinguishing feature between true iron deficiency anaemia & iron-deficient erythropoiesis in anaemia of disease. 
A defect in the transfer of iron from macrophages to the developing erythroid cells in the marrow leads to reduced availability of iron for haem synthesis despite adequate iron stores, elevating serum.