<prompt> True about iron deficiency anemia a Microcytic hypochromic anemiab Decreased TIBCc Increased ferritind Bone marrow iron decreased earlier than serum ironbadacab  <response>: Characteristics of anemia of iron deficiencyBlood pictureMicrocytic o Ring pessary cells o Target cells unusualHypochromic o Poikilocytosisone marrowHypercellular marrow o Erythroid hyperplasia o Depleted bone marrow iron ParametersS. Ferritin -- Reduced o Serum transferrin receptors IncreasedS. iron -- Reduced o Red cell protoporphyrin -- IncreasedTotal iron binding capacity Increased o Hepcidin level -- IncreasedPercentage saturation --- Decreased-In iron deficiency anemia, bone marrow iron decreases earliar than serum iron. 