Serum Iron: Measures the amount of iron in your blood. Ferritin: Indicates the amount of iron stored in your body. Low levels can suggest iron deficiency, while high levels can indicate iron overload or inflammation. Total Iron-Binding Capacity (TIBC): Measures the blood’s capacity to bind iron with transferrin, a protein that carries iron. High TIBC can indicate iron deficiency, while low TIBC might suggest anemia of chronic disease. Transferrin Saturation: The percentage of transferrin that is saturated with iron. Low levels can be a sign of ....