Haptoglobin

This test measures the amount of haptoglobin in your blood. Haptoglobin is a protein made by your liver to get rid of the hemoglobin outside your red blood cells.

A haptoglobin test is most often used to diagnose hemolytic anemia. Hemolytic anemia is a disorder that happens when your red blood cells are destroyed faster than they can be replaced. This test may also be used to see if another type of anemia or another blood disorder is causing your symptoms.

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

Normal range

3 published ranges, each from a named source
Normal
30–267 mg/dL (varies by lab)ABIM 83–267 · ARUP 30–200 · Mayo 30–200 mg/dL

These labs do not agree: the published adult ranges differ by up to 2.8×, so the same result can read as normal at one lab and be flagged at another — ABIM 83–267 · ARUP 30–200 · Mayo 30–200 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), Mayo Clinic Laboratories (Test Catalog).

All source ranges (3)

What an abnormal result can be associated with

A high result
Elevated circulating haptoglobin concentration
A low result
Decreased circulating haptoglobin 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
Listed under
Anemia · Blood Disorders
Code
LOINC 4542-7 · mg/dL
Also known as
Haptoglob, Haptoglobin, HP, Hpt
See your own Haptoglobin Add a lab report and it is drawn against your lab's range, over time. Upload a Blood Test