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Hapto, HP, Hp.

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

Serum collected in a gold-, red-, or red/gray-top tube.

Normal Findings:
(Method: Immunoturbidimetric)

AgeConventional 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

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