Ferritin is a protein which stores iron and releases it when the body is in need of additional iron. Since serum ferritin levels offer a reflection of the body’s stored iron, it can therefore be used to assess how much stored iron the body has. Most of the body’s ferritin is located in:
- Liver tissues
- Spleen tissues
- Skeletal muscle tissues
- Bone marrow tissues
For maximal accuracy, combine this test with:
- Hemoglobin test
- Blood pressure checkup on both arms
- Blood glucose test
- Blood platelet count
- Red blood cell count
- White blood cell count
If ferritin levels are low, consider adrenal glands (mineral utilization factors), spleen, liver, and bone marrow.
If ferritin levels are high, inquire if the person is taking iron supplements.