Also known as: Serum ferritin level
Ferritin, a major iron-storage protein, normally appears in small quantities in serum. In healthy adults, serum ferritin levels are directly related to the amount of available iron stored in the body and can be measured accurately by radioimmunoassay.
Procedure and posttest care
Normal serum ferritin values vary with age, as follows:
High serum ferritin levels may indicate acute or chronic hepatic disease, iron overload, leukemia, acute or chronic infection or inflammation, Hodgkin's disease, or chronic hemolytic anemias. In these disorders, iron stores in the bone marrow may be normal or significantly increased. Serum ferritin levels are characteristically normal or slightly elevated in patients with chronic renal disease.
Low serum ferritin levels indicate chronic iron deficiency.
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