Serotonin Release Assay (SRA) LMWH
Test Mnemonic
SRALMW
CPT Codes
- 86022 - QTY (1)
Includes
- LMWH SRA Result
- LMWH Low Dose 0.1 U/mL
- LMWH Low Dose 1.0 U/mL
- LMWH High Dose 50 U/mL
Performing Laboratory
Quest Diagnostics (Chantilly)
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Serum | No additive (Red) | Frozen, Critical |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Serum | SST (Gold) | Frozen, Critical |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.4 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Frozen | 6 months |
| Refrigerated | Unacceptable |
| Ambient | Unacceptable |
Days Performed
Sun - Fri
Turnaround Time
2 - 4 days
Methodology
| Name | Description |
|---|---|
| Radiobinding 14C Serotonin Radiolabel |
Reference Range
Special Info
A sample is considered negative if there is <20% release. This test is not available for New York patient testing.
Clinical Info
Low molecular weight heparin (LMWH) serotonin release assay may be useful for in-vitro investigation of LMWH-induced thrombocytopenia and/or thrombocytopenia with thrombosis syndrome (HIT/HITT).