Ferritin

About This Test
Ferritin is the storage form of iron; it reflects how much iron reserve your body has. Low ferritin is the earliest sign of iron deficiency—even before anemia appears—while high ferritin may occur with inflammation or liver disease. Doctors often review ferritin with hemoglobin, iron, TIBC, and transferrin saturation. This test is commonly included in routine check-ups to screen for potential problems early.

Patient Preparation
Fasting for 10 hours

Best Time to Test
Morning preferred

Tests Included
Ferritin

Why is it done
Work-up of fatigue, hair loss, brittle nails, or restless legs; evaluation of heavy menstrual bleeding, pregnancy needs, or dietary restriction; monitoring iron therapy; distinguishing true iron deficiency from anemia of chronic disease when used with iron studies.