Reference Interval:
Effective November 14, 2011
| Test Number
| Components
| Reference Interval
| | 0051052 | Heparin-Induced Thrombocytopenia Antibodies
| 0.399 OD or less
| | 2005631 | Serotonin Release Assay (Heparin Dependent Platelet Antibody), Unfractionated Heparin
| By report
|
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| Interpretive Data: |
By itself, a positive result on this ELISA test is relatively non-specific for a clinical diagnosis of heparin-associated antibody syndrome (HIT) (frequent false-positives) and a negative result does not exclude a diagnosis of HIT if the clinical suspicion remains high (occasional false-negatives). Results should be used in conjunction with clinical findings, platelet counts and other laboratory results.
For a clinical scoring system to assess pretest probability of HIT and other guidance for diagnosing HIT, refer to the Heparin-Associated Antibody Syndrome topic at arupconsult.com.
|
| Note: |
Positive ELISA results are relatively non-specific for a clinical diagnosis of HIT. If ELISA result is positive, then Serotonin Release Assay (a functional assay with greater specificity for a clinical diagnosis of HIT syndrome) will be added. Additional charges apply.
|
| CPT Code(s): |
86022; if reflexed add 86022 x2
|
Cross References: |
HAT (Heparin-Induced Thrombocytopenia Antibodies with Reflex to Serotonin Release Assay (Heparin Dependent Platelet Antibody), Unfractionated Heparin)
, Heparin PF4 Antibody (Heparin-Induced Thrombocytopenia Antibodies with Reflex to Serotonin Release Assay (Heparin Dependent Platelet Antibody), Unfractionated Heparin)
, Heparin-Associated Antibody (Heparin-Induced Thrombocytopenia Antibodies with Reflex to Serotonin Release Assay (Heparin Dependent Platelet Antibody), Unfractionated Heparin)
, HIPA (Heparin-Induced Thrombocytopenia Antibodies with Reflex to Serotonin Release Assay (Heparin Dependent Platelet Antibody), Unfractionated Heparin)
, HITA (Heparin-Induced Thrombocytopenia Antibodies with Reflex to Serotonin Release Assay (Heparin Dependent Platelet Antibody), Unfractionated Heparin)
, Type II HIT (Heparin-Induced Thrombocytopenia Antibodies with Reflex to Serotonin Release Assay (Heparin Dependent Platelet Antibody), Unfractionated Heparin
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