Haptoglobin

General

Synonym/Acronym:
Hapto, HP, Hp.

Rationale
To assist in evaluating for intravascular hemolysis related to transfusion reactions, chronic liver disease, hemolytic anemias, and tissue inflammation or destruction.

Patient Preparation
There are no food, fluid, activity, or medication restrictions unless by medical direction.

Normal Findings
Method: Immunoturbidimetric.

Age Conventional UnitsSI Units (Conventional Units × 0.01)
Newborn5–48 mg/dL (levels may be undetectable at birth)0.05–0.48 g/L (levels may be undetectable at birth)
6 mo–16 yr25–138 mg/dL (adult levels are reached by 1 yr)0.25–1.38 g/L (adult levels are reached by 1 yr)
Adult15–200 mg/dL0.15–2 g/L

Critical Findings and Potential Interventions
N/A

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