Iron and Total Iron Binding Capacity (TIBC)


This blood test measures Iron and Total Iron-Binding Capacity (TIBC) levels. The total amount of iron bound to transferrin is known as Total Iron-Binding Capacity (TIBC). The body makes transferrin in relationship to the need for iron.

Total Iron Binding Capacity is an approximate estimation of the serum transferrin level. Iron plays a principle role in producing red blood cells and is transported in the blood as transferrin, a major transport protein. TIBC is low with iron deficiency anemia and high with anemia of chronic disease. TIBC is also used to help confirm a diagnoses of iron overload, also known as hemochromatosis.

Test Preparation For Optimal Results:

If possible, have the lab collected early in the morning or shortly after waking. For comparison purposes, have subsequent labs collected close to the same time.

Disclaimer: A health care provider should evaluate a deviation from normal ranges.