Normal Reference Ranges
Adult
Male: 24-336 | Female: 11-307 ng/mL
Pediatric
25 - 200 ng/mL
Clinical Significance
Reflects total body iron stores. Most sensitive test for iron deficiency anemia, though it can be falsely elevated in inflammation.
Causes of High
- Hemochromatosis
- Chronic inflammation (Acute phase reactant)
- Liver disease
- Frequent blood transfusions
Causes of Low
- Iron deficiency anemia
- Severe bleeding
- Poor dietary absorption