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Test Name:
Serotonin Release Assay, Unfractionated Heparin


  • SBMF No:
    45188
  • Performance Lab Name:
    BloodCenter of Wisconsin
  • Test Mnemonic:
    SRA UFH
  • ABN:
    Not required
  • CPT Code:
    86022x2
  • LOINC Code:
    19146-0
  • Ref Lab Test No:
    5508
  • Also Known As:
    Heparin-Dependent Platelet Antibody
    Serotonin Release Assay
    SRA-Porcine Heparin
    SRA-UFH
  • Also See:
    28144 Heparin-Associated Antibody, PF4 ELISA
    28265 Heparin-Associated Antibody, PF4 ELISA, with Serotonin Release Assay-UFH if Indicated
  • Spec Type:
    Serum
  • Spec Container:
    Red top (serum) tube(s)
  • Pref Vol:
    5.0 mL
  • Min Vol:
    1.0 mL
    Note: This volume does not permit repeat analysis
  • Fasting:
    No
  • Spec Collect:
    Routine venipuncture
  • Spec Process:
    Clot 30 minutes
    Promptly centrifuge 15 minutes
    Immediately transfer serum to separate plastic tube
  • Spec Store Transport:
    Refrigerated
  • Spec Stability:
    1 week refrigerated (2-8°C)
    Greater than 1 week, freeze (-20°C) – Do not use frost-free units that undergo repeated freeze/thaw cycles
  • Methodology:
    14C-Serotonin Release Assay (SRA)
  • Additional Test Info:
    Serotonin Release Assay; Test Information
  • Day Run:
    Mon-Sat
  • Time Reported:
    Reports in 2-4 days
    This is a sendout test. Please note that turnaround time is defined as the anticipated time from set up day to results release.
  • Test Type:
    IMMUNOLOGY