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Transferrin

Item# LC004937

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Transferrin

Item Catalog Number: LC004937

Transferrin is the main protein in the blood that binds to iron and transports it throughout the body. Transferrin levels rise with iron deficiency and fall in cases of iron overload.

Normally, iron is absorbed from food and transported throughout the body by transferrin, which is produced by the liver. About 70% of the iron is transported to the bone marrow and incorporated into hemoglobin within red blood cells. The remainder is stored in the tissues as ferritin.

Transferrin is responsible for circadian variation in serum iron (peak in AM).

An 8 to 12 hour fast is required for this blood test. However, drink plenty of water and take your medications as prescribed.