Ferritin, Serum (Iron-Storing Protein Level)

Why Might You Need This Test?

Your doctor may order a serum ferritin test to check if you have enough iron in your body. This is important for diagnosing conditions like anemia, especially if you’re experiencing fatigue, weakness, or pale skin. It can also help identify iron overload in cases like hemochromatosis, where too much iron builds up in your tissues.

What Does a Low or High Ferritin Level Indicate?

Low ferritin levels often suggest iron deficiency, which can lead to anemia and other health problems. High levels might indicate iron overload, which can cause damage to organs like the liver or heart over time.

How Is This Test Performed?

A blood sample is taken from a vein in your arm. The sample is sent to a lab where it’s analyzed to measure ferritin levels. No special preparation is usually needed, but you may be asked to avoid certain foods or medications for a short time before testing.

What Are Common Causes of Abnormal Results?

Abnormal ferritin levels can result from conditions like chronic illness, certain medications, or genetic disorders. For example, inflammation or infections can lower ferritin, while conditions like hemochromatosis or excessive iron intake can raise it.