Ordering Recommendation

Gold standard test for diagnosis of heparin-induced thrombocytopenia (HIT).

Mnemonic
SRA UFH
Methodology

Qualitative Serotonin Release Assay

Performed

Mon-Sat

Reported

2-4 days

New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect

Serum separator tube.

Specimen Preparation

Transfer 5 mL serum to ARUP Standard Transport Tubes. (Min: 1 mL)

Storage/Transport Temperature

Frozen. Also acceptable: Refrigerated.

Unacceptable Conditions
Remarks
Stability

Ambient: Unacceptable; Refrigerated: 1 week; Frozen: Indefinitely

Reference Interval

By report

Interpretive Data



Compliance Statement B: For laboratory developed tests not using a RUO kit, and for FDA approved, cleared or 510(k) exempt assays with alterations. This test was developed and its performance characteristics determined by ARUP Laboratories. The U. S. Food and Drug Administration has not approved or cleared this test; however, FDA clearance or approval is not currently required for clinical use. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions.

Note
Hotline History
N/A
Components
Component Test Code* Component Chart Name LOINC
2005632 SRA, Unfractionated Heparin 50734-3
2006744 SRA, Unfractionated Heparin, Low Dose 50728-5
2006745 SRA, Unfractionated Heparin, High Dose 50727-7
2006746 SRA, Unfractionated Heparin, Interp. 66488-8
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • Porcine Heparin (Serotonin Release Assay (Heparin Dependent Platelet Antibody), Unfractionated Hepar
  • SRA UFH (Serotonin Release Assay (Heparin Dependent Platelet Antibody), Unfractionated Heparin)
  • Unfractionated Heparin (Serotonin Release Assay (Heparin Dependent Platelet Antibody), Unfractionate
Serotonin Release Assay (Heparin Dependent Platelet Antibody), Unfractionated Heparin