TABLE 3.
Response of iron status indicators to a depletion of body iron compartments with and without concomitant inflammation and to an overload of body iron compartments1
Compartment | Indicator | IDA | ACD | IDA + ACD | Overload |
Stored iron | SF | Reduced | Normal to increased | Reduced to normal | Increased |
Transport iron | Iron | Reduced | Reduced | Reduced | Increased |
Transferrin | Increased | Reduced | Reduced | Reduced | |
TSAT | Reduced | Reduced | Reduced | Increased | |
EP | Increased | Increased | Increased | Reduced | |
sTfR | Increased | Normal | Normal to increased | Normal | |
Functional iron | Hemoglobin | Reduced | Reduced | Reduced | Normal |
Inflammatory response | NA | Normal | Increased | Increased | NA |
ACD, anemia of chronic disease; EP, erythrocyte protoporphyrin; IDA, iron deficiency anemia; IDA + ACD, combined iron deficiency anemia and anemia of chronic disease; NA, not applicable; SF, serum ferritin; sTfR, soluble transferrin receptor; TSAT, transferrin saturation.