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Test Name

Serotonin Release Assay (SRA), Unfractionated Heparin

CPT Code(s)

86022

Methodology

Radiobinding 14C Serotonin Radiolabel

Reference Range(s)

A sample is considered negative if there is <20% release

Clinical Significance

Any patient with an unexplained fall in the platelet count of >40% during or after cessation of heparin therapy should be suspected of heparin-induced thrombocytopenia (HIT).

Test FAQ

Anti-PF4 and Serotonin Release Assay (SRA) for Diagnosing Heparin-induced Thrombocytopenia/Thrombosis (HIT/HITT)

To view specimen requirements and codes please Select a regional laboratory.

Not sure which laboratory serves your office? Call us 866-MYQUEST (866-697-8378)

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided 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 payer being billed.

* The tests listed by specialist are a select group of tests offered. For a complete list of Quest Diagnostics tests, please refer to our Directory of Services.

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Serotonin Release Assay (SRA), Unfractionated Heparin
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