Home Biomarkers Ferritin
Iron StudiesFerritin (FER)
Storage form of iron. The single most useful marker for iron deficiency, with caveats in inflammation.
What it measures
Storage form of iron. The single most useful marker for iron deficiency, with caveats in inflammation.
What a high value can mean
Iron overload, inflammation, liver disease, hemochromatosis, alcohol use.
What a low value can mean
Iron deficiency (most common cause), blood loss, vegetarian diet, pregnancy.
Conditions it helps assess
- Iron deficiency
- Iron overload
Reading these numbers in context
Reference ranges describe the central 95 % of a healthy reference population — 5 % of perfectly healthy people fall outside any given range by definition. A single mildly abnormal value is rarely meaningful on its own. blood-test.life always interprets values together with related biomarkers before flagging.