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Test Code

HAPAB

Test Name

Heparin Associated Platelet Antibody

CPT Codes

86022

Expected Turnaround Time

1 - 5 days

Clinical Utility

Determination of IgG antibodies to the PF4-Heparin complex, which have been implicated in the pathogensis of Heparin Induced Thrombocytopenia (HIT).

Specimen and Container Info

Preferred Specimen Type: Serum

Desired Specimen Volume: 2 mL

Preferred Collection Container: Gold Top, Serum Separator

Processing and Submission Instructions

Specimens must be received in the laboratory by 11:00 AM to ensure same day turnaround time for results.

Transport Instructions

Transport refrigerated.

Stability Requirements

Refrigerated

Samples should be stored at 2-8° C for no longer than 48 hours.

Frozen

Samples frozen at -20°C or below remain in good condition for several years (2-3 years).

Freeze/Thaw Cycles

Avoid multiple freeze/thaw cycles.

Methodology

ELISA

Reference Intervals

<0.400

Performing Location

Roble Road Core Laboratory

Testing Schedule

Routine, daily