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Laboratory Medicine

Test Directory / Haptoglobin


Brown clotted serum, gel barrier or orange lithium heparin

Common AbbreviationsHP, HAPT
Tube typeBrown clotted serum, gel barrier or orange lithium heparin
Clinical IndicationHaptoglobin is used primarily to screen for and to follow the course of haemolytic disorders. Plasma levels are increased in the presence of acute inflammatory processes, tissue necrosis, malignancy, protein losing syndromes (e.g. nephrotic syndrome or protein losing enteropathies) and in corticosteroid therapy. Plasma levels are decreased in haemolytic disease and ineffective erythropoiesis, genetic deficiency, due to endogenous or exogenous oestrogens and in hepatocellular diseases.
Specimen TypeBlood
Sample typeSerum
Minimum Volume0.5mL If requesting more than 10 tests please send an additional brown clotted serum sample.
Special PrecautionsNo special requirements
Stability3 months at 15-25°C and 8 Months at 2-8°C
Turnaround TimeInpatient: 4 days Outpatient/ GP: 4 days
Reference IntervalAdults: 0.3-2.0 g/L (Quoted by the manufacturer)
LimitationsGrossly lipaemic or haemolysed samples are not suitable for analysis. Samples with extremely abnormal optical characteristics, especially turbidity may produce atypical results.
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