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)

FDA Category

Analyte Specific Reagent


Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
1 mLSerumNo additive (Red) Frozen, Critical 

Alternate Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
1 mLSerumSST (Gold) Frozen, Critical 

Minimum Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
0.4 mL     

Stability

Environmental Condition Description
Frozen6 months
RefrigeratedUnacceptable
AmbientUnacceptable

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).