What does UIBC mean?

UIBC: Blood Test, Reference Range, Normal Value

UIBC stands for ‘Unsaturated iron-binding capacity‘.

Unsaturated iron-binding capacity (UIBC) is a blood test most frequently used along with a serum iron test and a total iron-binding capacity test (TIBC) to evaluate people suspected of having either iron deficiency or iron overload. Iron moves through the blood attached to a protein called transferrin. Your body makes transferrin in relationship to your need for iron. When iron stores are low, transferrin levels increase, while transferrin is low when there is too much iron. Usually about one third of the transferrin is being used to transport iron.

UIBC TIBC range reference range normal value blood testIron binding capacity measurements are used in the diagnosis and treatment of anaemias. Iron is carried by binding to the transport protein Transferrin. The measurement of the maximum concentration of iron that Transferrin can bind is called the Total Iron Binding Capacity (TIBC). Normally, only about one third of the iron binding sites of Transferrin are occupied by Fe (III); therefore, there is considerable reserve iron binding capacity. This is called the serum Unsaturated Iron Binding Capacity (UIBC).

UIBC Reference Range / Normal Value:

A healthy result should fall into the range:

150 – 375 µg/dL

26.85 – 67.12 µmol/L

150.00 – 375.00 umol/L.

For more detailed information on UIBC click here:


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