#M3201: Heparin Antibody - washed-platelet HIPA COMPONENTS Name Method Ref Range Units Panic Value Frequency Method Description washed-platelet HIPA HIPA Normal % Positive Daily Quantitative SPECIMEN REQUIREMENTS Name Type Volume Aliquot # Temp Container Type Primary/ Alternate washed platelet-HIPA Serum 1 mL 1 Frozen Red Top GENERAL INFORMATION Abbreviations wp-HIPA Test Frequency Available daily Alternate Names HAT, HIPA, HIT CPT Code 86022*2 Notes The washed-platelet Heparin-induced Platelet Activation (HIPA) test is a functional assay that detects clinically significant heparin antibodies. The HIPA has the same published sensitivity and specificity for heparin-associated antibodies as the Serotonin Release Assay (SRA). This test is a modification of the HIPA test described by Greinacher and Warkentin.

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