What Is Serum Ferritin?
Serum ferritin is the ferritin that is in a person’s bloodstream. Ferritin is a protein that stores iron and allows the body to use iron. Many doctors use a blood test to measure the amount of serum ferritin in a patient’s blood in order to assess their health. Several medical conditions can cause an individual to have high or low levels of ferritin in the bloodstream, and a serum ferritin blood test may be used to monitor the progress of a disease.