Heparin Associated Antibody

Test Code

HAA

Alias/See Also

HIT Ab

CPT Codes
86022

Preferred Specimen

Serum collected in a plain Red top

Minimum Volume

0.5 ml

Other Acceptable Specimens

none

Instructions

HAA- DO NOT DRAW FROM LINE

Transport Container

RED/0.5

Specimen Stability

7 days a 2-8 degrees

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Centrifuged sample in polystyrene tube

Methodology
EIA

Setup Schedule

Daily at 9:00 and 13:30.

Report Available

Daily at 9:00 and 13:30. Report available: 24 hours

Reference Range

SEE REPORT

Clinical Significance

Patients receiving heparin treatment for at least a week often develop thrombocytopenia. In some cases the platelet levels are reduced only slightly and return to normal even when heparin treatment is continued. In other patients thrombocytopenia is usually more severe and is antibody-mediated. These patients are at risk to develop arterial or venous thrombosis if heparin therapy is continued.

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.