TIBC

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

5 published ranges, each from a named source

250310 ug/dL drawn: all ages · American Board of Internal Medicine (Laboratory Test Reference Ranges)

18 y+: 240–450
Normal: 250–400 ug/dL (varies by lab)ABIM 250–310 · Mayo 250–400 ug/dL

These labs do not agree: the published adult ranges differ by up to 29%, so the same result can read as normal at one lab and be flagged at another — ABIM 250–310 · Mayo 250–400 ug/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), Mayo Clinic Laboratories (Test Catalog).

All source ranges (5)

Source	Sex	Age	Range
American Board of Internal Medicine (Laboratory Test Reference Ranges)	All	all ages	250–310 ug/dL
ARUP Laboratories Test Directory	All	≤ 2 mo	59–175
ARUP Laboratories Test Directory	All	3 mo – 17 y	250–400
ARUP Laboratories Test Directory	All	18 y+	240–450
Mayo Clinic Laboratories (Test Catalog)	All	all ages	250–400 ug/dL

What an abnormal result can be associated with

A high result: Increased total iron binding capacity
A low result: Abnormality of iron homeostasis

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 · fasting · Mayo Clinic Laboratories (Test Catalog)
Part of: Iron and Iron binding capacity panel
Listed under: Anemia · Hemochromatosis · Iron
Code: LOINC 2500-7 · ug/dL
Also known as: Iron binding capacity, IBC, TIBC, Total iron binding, Fe

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