Serum iron, total iron-binding capacity (TIBC), and/or transferrin tests are usually ordered together and, subsequently, the transferrin saturation can be determined and used to assess how much iron is being carried in the blood. A ferritin test may also be used to evaluate a person’s current iron stores.
Serum iron levels are often evaluated in conjunction with other iron tests. A summary of the changes in iron tests seen in various diseases of iron status is shown in the table below.
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