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Iron-Binding Capacity

Reference Range

The index of transferrin present in circulating blood is the iron-binding capacity. Transferrin can be nearly one third saturated with iron. The unsaturated iron-binding capacity (UIBC) is measured using radioactive iron or spectrophotometric approaches. The sum of the UIBC and the plasma iron is the total iron-binding capacity (TIBC).
Direct measurement of the TIBC may also be performed.

The iron-binding capacity reference range is 255-450 μg/dL.

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