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Serotonin Release Assay (SRA), Unfractionated Heparin
Test CodeSRA2
CPT Codes
<p>86022</p>
Preferred Specimen
Specimen Type: Serum
Collection Container/Type
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL
Minimum Volume
0.4 mL
Transport Container
Transport tube
Transport Temperature
Frozen
Specimen Stability
Room temperature: 24 hours
Refrigerated: 48 hours
Frozen: 6 months
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Received room temperature • Received refrigerated
Methodology
Radiobinding 14C Serotonin Radiolabel
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Setup Schedule
Set up: Sun-Fri; Report available: 1-2 days
Report Available
1 day
Reference Range
See Laboratory Report
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 hit-heparin induced thrombocytopenia. This test is a functional assay of the PFU-antibody complex with heparin.
Performing Laboratory
Quest Diagnostics Nichols Institute 14225 Newbrook Drive Chantilly, VA 20153
Last Updated: February 24, 2012