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Haptoglobin
Panel: Iron Studies · All iron studies tests
Typical adult reference range
| Conventional units | 30–200 mg/dL |
| SI units | 0.3–2.0 g/L |
Ranges vary between laboratories and methods — compare your result with the range printed on your own report.
What a high or low result can mean
High haptoglobin: high values can be seen as an acute-phase response to inflammation.
Low haptoglobin: low values may occur in intravascular hemolysis and in liver disease.
These are associations, not a diagnosis: the same result can have several causes, and your clinician interprets it with the rest of your results and history.
Good to know
Binds free hemoglobin released from red blood cells.
Related tests — Iron Studies
Please note: Reference ranges vary between laboratories, and between the methods and instruments they use — the range printed on your own report is the one your result should be compared with. A result outside the range is not by itself a diagnosis, and a result inside it does not rule out illness. These pages are an educational summary, not medical advice: always discuss your results with the clinician who ordered them, who can interpret them in the context of your health and history.