A ferritin serum blood test is a medical test used to measure the level of ferritin in the blood. Ferritin is a protein that stores iron in the body, and its levels in the blood can provide information about iron levels in the body.

The ferritin blood test is primarily used to assess iron levels and to diagnose and monitor conditions related to iron metabolism, such as iron deficiency anemia, hemochromatosis, and other iron overload disorders.

The test is usually performed by taking a small sample of blood from a vein in the arm. The sample is then sent to a laboratory for analysis. Results are usually available within a few days.

Normal levels of ferritin in the blood vary depending on age, gender, and other factors. In general, normal levels range from 12 to 300 nanograms per milliliter (ng/mL) in males and 12 to 150 ng/mL in females. Low levels of ferritin may indicate iron deficiency anemia or other conditions, while high levels may indicate iron overload disorders or other conditions such as liver disease, inflammatory disorders, or cancer.

It is important to note that ferritin levels can be influenced by many factors, including age, gender, menstrual cycle, pregnancy, and certain medications. Your healthcare provider will interpret the results of your ferritin blood test in the context of your individual health status and medical history.