Transferrin

Iron tests measure different substances in the blood to check iron levels in your body. Iron is a mineral that your body needs for growth and development. Your body uses iron to make hemoglobin, a protein in red blood cells. It carries oxygen from the lungs to all parts of the body, Iron is also important for healthy muscles, bone marrow, and organ function.

Source: MedlinePlus, U.S. National Library of Medicine

Normal range

4 published ranges, each from a named source

200400 mg/dL drawn: all ages · American Board of Internal Medicine (Laboratory Test Reference Ranges)

Normal: 200–400 mg/dL (varies by lab)ABIM 200–400 · ARUP 200–360 · Mayo 200–360 mg/dL
Normal: 2–4 g/L

These labs do not agree: the published adult ranges differ by up to 11%, so the same result can read as normal at one lab and be flagged at another — ABIM 200–400 · ARUP 200–360 · Mayo 200–360 mg/dL. Both are real published values, shown as each lab states them.

Ranges from ARUP Laboratories Test Directory, American Board of Internal Medicine (Laboratory Test Reference Ranges), Laboratorium Medyczne Synevo (test catalog, synevo.pl), Mayo Clinic Laboratories (Test Catalog).

All source ranges (4)

Source	Sex	Age	Range
American Board of Internal Medicine (Laboratory Test Reference Ranges)	All	all ages	200–400 mg/dL
ARUP Laboratories Test Directory	All	all ages	200–360 mg/dL
Mayo Clinic Laboratories (Test Catalog)	All	all ages	200–360 mg/dL
Laboratorium Medyczne Synevo (test catalog, synevo.pl)	All	all ages	2–4 g/L

What an abnormal result can be associated with

A high result: Elevated circulating transferrin concentration
A low result: Decreased circulating transferrin concentration

Associations from LOINC2HPO (Human Phenotype Ontology). This is reference information, not a diagnosis: only a clinician can interpret your result in context.

details

Sample: Serum or plasma · LOINC
Collection: Serum gel tube · 1 mL · Mayo Clinic Laboratories (Test Catalog)
Listed under: Anemia · Hemochromatosis · Iron
Code: LOINC 3034-6 · mg/dL
Also known as: Siderophilin, TRFRN, Tf, Trf

See your own Transferrin Add a lab report and it is drawn against your lab's range, over time. Upload a Blood Test