Transferrin Test
The protein that carries iron in the blood. Levels rise when iron stores are low.
What is Transferrin?
The protein that carries iron in the blood. Levels rise when iron stores are low.
Transferrin Reference Range
These are the typical adult reference ranges used by major US labs. Your report will include the specific range used by the lab that processed your sample.
| Population | Range |
|---|---|
| age 18+ | 200 – 360 mg/dL |
Reference ranges are educational. Always interpret your result with the specific range printed on your lab report and discuss anything outside the range with a clinician.
What your Transferrin result may mean
Often reflects iron deficiency.
Can reflect inflammation, malnutrition, or liver disease.
Educational only — not a diagnosis. Many factors can influence a single result. Discuss anything that concerns you with a healthcare provider.
Sources
Related Iron & Anemia biomarkers
Markers commonly tested alongside Transferrin.
Frequently asked
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