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Choose collection locationBiochemistry · Individual laboratory test
Transferrin carries iron between tissues. Measuring the protein helps explain iron transport, particularly alongside iron and ferritin results.
Clinical authorDr Nirupama SabhapathySpecialist Clinical Pathology
Understanding the test
Also called Iron Transport Protein
The transferrin level can help explain whether the blood has more or less capacity to carry iron. It is often requested with other iron studies.
The protein measurement can clarify how much carrier is available.
It may supplement ferritin and iron when investigating a small-cell anaemia.
Before your sample
A fasting morning collection is preferred when iron and saturation are measured with transferrin. Give the clinician details of recent iron treatment or inflammation.
A clinician takes a small sample of blood from a vein. The laboratory uses serum, the liquid separated from the blood after it clots.
Smart Report
24 hoursLaboratory turnaround
Transferrin is produced by the liver. Changes in production and inflammation can influence it even when available iron changes in a different direction.
From sample to follow-up

Choose your location, add the test to your care bag and select a time. If you are booking for someone else, assign the test to them in checkout.
Choose collection locationLook for Transferrin in your report. Use the sample type and collection time when comparing it with an earlier report.
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Record any recent inflammatory illness and ask whether the iron and ferritin measurements support the same interpretation as transferrin.
Patient questions
Inflammation, nutrition and the liver's ability to make proteins can affect transferrin. That is one reason clinicians compare transport and storage markers.
A low transferrin most often reflects chronic inflammation, infection or malignancy, because the liver makes less of it during illness. It is also seen in liver disease, iron overload such as haemochromatosis, protein loss through the kidneys or intestine, and poor protein intake. Your doctor uses the other iron tests and your history to tell these apart.
Yes. Pregnancy and oestrogen-containing medicines, including some oral contraceptive pills, raise transferrin for reasons unrelated to your iron status. Tell the team if either applies, so that a high result is not mistaken for iron deficiency on its own.
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Written by Dr Nirupama Sabhapathy, Specialist Clinical Pathology. Medically reviewed by Dr Joyce Jose, Specialist Clinical Pathology, on .
Catalogue information and AED price checked on 2 November 2026. Clinical suitability, preparation, collection arrangements and turnaround are confirmed for your selected test.