Casandra
Casandra Test Code QD67533Version 1 (DRAFT)
Performing Lab
Serotonin Release Assay (SRA), Unfractionated Heparin
Clinical Use
Order TestUse
Functional assay used to evaluate patients with suspected heparin‑induced thrombocytopenia (HIT); significant drop in platelet count (>40%) during or after heparin exposure should raise suspicion, and this assay assesses heparin‑dependent platelet activation via antibody‑mediated serotonin release. Ticagrelor may lead to false‑negative results and should be avoided during testing.
Special Instructions
Not provided.
Limitations
Not provided.
Test Details
Methodology
Other
Biomarkers
Targets not provided.
Result Turnaround Time
1-2 days
Related Documents
For more information, please review the documents below
Specimen Requirements
Specimen
Serum
Volume
1 mL
Minimum Volume
0.4 mL
Container
Red‑Top Tube
Causes for Rejection
Received room temperature; Received refrigerated
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | Unacceptable |
| Refrigerated | Unacceptable |
| Frozen | 6 months |
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