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Haptoglobin in Serum (Mass Concentration)

Published: August 9, 2026Updated: August 16, 2026

This test measures the amount of haptoglobin, a protein in your blood that helps remove free hemoglobin (from red blood cell breakdown) and protects against oxidative damage.

Quick summary

["Haptoglobin helps identify conditions affecting red blood cells or inflammation."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
22349-5
Short code
H capsul IgA Ser-aCnc
Synonyms
H capsul IgA Ser-aCnc
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
CPT
82784
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

Why This Test Might Be Ordered

Your healthcare provider may order this test if you have symptoms like fatigue, pale skin, or unexplained anemia, or if you’re experiencing conditions such as hemolysis (red blood cell destruction), infections, or certain blood disorders. It may also be used to monitor treatment responses in conditions like malaria or autoimmune diseases.

What to Expect During the Test

A small blood sample is drawn from a vein, usually in your arm. The process is quick and typically painless. You may feel a slight pinch, but it usually doesn’t cause lasting discomfort. No special preparation is needed.

Possible Results and Interpretation

Haptoglobin levels can vary based on health status, diet, and other factors. Low levels may suggest conditions like hemolytic anemia, infections, or inflammation, while very low levels could indicate severe blood loss or certain genetic disorders. High levels might be seen in chronic inflammation or certain liver diseases.

Common Conditions Affecting Results

Conditions such as hemolytic anemia (where red blood cells break down faster than usual), infections (like malaria or sepsis), autoimmune diseases, or liver disorders can influence haptoglobin levels. It’s important to discuss your full medical history with your provider for accurate interpretation.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Serum Haptoglobin

Frequently asked questions

What does a low haptoglobin level mean?
A low haptoglobin level may indicate red blood cell destruction (hemolysis), which can occur due to conditions like sickle cell disease, autoimmune disorders, or infections. It can also signal severe blood loss or certain genetic blood disorders. Your provider will consider your symptoms and other test results to determine the cause.
What does a high haptoglobin level mean?
High haptoglobin levels may be associated with chronic inflammation, liver diseases, or certain types of cancer. They can also appear in response to severe trauma or burns. Always discuss your results with your healthcare provider, as they’ll evaluate the context and other factors to guide further action.
Can diet affect haptoglobin levels?
Dietary factors may have a minor influence on haptoglobin levels, but they are not a primary determinant. Conditions affecting overall health, such as chronic inflammation or blood disorders, have a stronger impact. Your provider will consider lifestyle and medical history when interpreting your results.
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy