Total Iron Binding Capacity (TIBC) measures the maximum amount of iron that blood proteins (mainly transferrin) can carry. It helps evaluate iron status.
Category: Iron Studies
Also known as: tibc, total iron binding capacity, total iron-binding capacity
Reference range: 250–370 µg/dL (Source: ABIM)
Standard unit: µg/dL
High values may indicate
High TIBC may indicate iron deficiency anemia, as the body produces more transferrin to try to capture more iron.
Low values may indicate
Low TIBC may indicate iron overload (hemochromatosis), chronic inflammation, liver disease, or malnutrition.