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Iron Binding Capacity,Unsaturated (UIBC)

SI UNITS (recommended)

CONVENTIONAL UNITS

Synonym

Unsaturated Iron - Binding Capacity, Iron indices, iron profile, unsaturated iron binding capacity, UIBC

Units of measurement

mmol/l, µmol/l, µg/dl, µg/100ml, µg%, µg/l, ng/ml

Ingested iron is absorbed primarily from the intestinal tract and is temporarily stored in the mucosal cells as Fen 3 + ‑ferritin, a complex of ferric hydroxide‑ferric phosphate attached to the protein apoferritin. On demand, iron is released from the mucosal cells into the blood as Fe2 3+ ‑transferrin in equilibrium with a very small amount of free Fe 3+ .

Transferrin is the plasma iron transport protein that binds iron strongly at physiological pH. Transferrin is generally only 25 to 30 percent saturated with iron. The additional amount of iron that can be bound is the unsaturated iron binding capacity (UIBC). The sum of the serum iron and UIBC represents the total iron binding capacity (TIBC).

SI units Conversion Calculator. Convert Iron Binding Capacity,Unsaturated (UIBC) level to mmol/l, µmol/l, µg/dl, µg/100ml, µg%, µg/l, ng/ml. Clinical laboratory units online conversion from conventional or traditional units to Si units. Table of conversion factors for Iron Binding Capacity,Unsaturated (UIBC) unit conversion to mmol/l, µmol/l, µg/dl, µg/100ml, µg%, µg/l, ng/ml.

Last updated: February 17, 2025

Created by: Dr. Rajesh Moganti

Reviewed by : Medical Review Board

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