Iron + Total Iron Binding Capacity

This is a single-marker test measuring total iron binding capacity (TIBC). Iron binding capacity measurements are used in the diagnosis and treatment of anemia. This test can be ordered as part of a custom panel.

Ordering the Total Iron Binding Capacity Test From Access Medical Laboratories

A total iron-binding capacity (TIBC) test is a blood test that measures how much transferrin present in the blood is bound to iron. This measurement shows how well iron is functioning in the body.

Transferrin is a protein made by the liver that binds to iron in the blood, and once iron is bound to transferrin, it goes to the bone marrow to produce red blood cells and hemoglobin, the protein that helps to carry oxygen.

There are Two Types of TIBC Tests:

• ‍Unsaturated iron-binding capacity: The Unsaturated iron-binding capacity (UIBC) measures how much transferrin is not yet bound to iron
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• Total iron-binding capacity: The TIBC reflects the total amount of iron in the blood plus the UIBC.
  

Which Patients is the Total Iron Binding Capacity Test From Access Medical Laboratories Best Used For?

A physician may order a TIBC test if an individual presents signs of high or low iron.

Low Iron Symptoms:

• Tiredness
• Pale skin
• Weakness
• Feeling cold all the time
• Getting sick a lot
• Swollen tongue
• Brain growth problems in children
  

High Iron Symptoms

• Tiredness
• Stomach pain
• Joint pain
• Weakness
  

A TIBC test is usually performed as part of an iron panel that includes iron and transferrin. Because transferrin and TIBC tests both measure the levels of transferrin in the blood, these are basically the same test. In some cases, a physician might order one or the other.