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Haptoglobin Blood Test

The Haptoglobin Blood Test measures the amount of protein called haptoglobin in your blood.

Sample Report

Test Code: 001628

Also Known As: HPT; hemoglobin-binding protein; Hp

Methodology: Immunologic

Preparation: No fasting required. Avoid exercise prior to collection.

Test Results: 3-5 days. May take longer based on weather, holiday or lab delays.


Haptoglobin testing is used to help detect hemolytic anemia and identify it from anemia due to other causes.  Haptoglobin is a protein produced by the liver.  The body uses haptoglobin to clear free hemoglobin from circulation.  Hemoglobin is normally found in red blood cells and only a minimal amount is free circulating in the blood.  The haptoglobin binds to the free hemoglobin forming a haptoglobin-hemoglobin complex.  The complex is usually cleared out of circulation rapidly for degradation and iron recycling.  The level of haptoglobin in your blood plays a key role in determining the type of anemia.


Symptoms of anemia include:

  • Weakness
  • Tiredness
  • Pale skin
  • Shortness of breath
  • Jaundice
  • Dark colored urine


Test results vary according to age, gender and health history along with other diseases or conditions. 


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