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Serotonin Release Assay

Serotonin Release Assay (SRA)

Alternate Test Name

Unfractionated Heparin; Heparin Dependent Platelet Antibody SRA-Porcine Heparin SRA-UFH

Epic Mnemonic
Sunquest Mnemonic

LAB3304
SRLA

Category

Sendouts

Methodology

Serotonin Release Assay (SRA)

Test Performance Schedule

As requested

Result Availability

1 – 7 days

Specimen Required

Container

Red top (serum) tube

Volume

Pref. Vol.: 5.0 mL
Min. Vol.: 2.0 mL

Collection Instructions

• Routine venipuncture

• Immediately after collection, gently invert tube 8-10 times

• Clot 30 minutes

• Promptly centrifuge 15 minutes
• Immediately transfer serum to separate plastic tube

Transportation Instructions

Refrigerated

Stability

• Room Temperature: Unacceptable
• Refrigerated: 7 days
• Frozen: 3 months

Remarks

This test will be ordered as reflex to positive or borderline Heparin Dependent Antibody results.

CPT Codes

86022

Effective/Revised

11/10/15

Clinical Significance

This test will be ordered as reflex to positive or borderline Heparin Dependent Antibody results but also remains as an orderable test (can still be ordered without ordering Heparin Dependent Antibody first) and may be an appropriate test to order initially in ECMO or other mechanical circulatory assist patients where the Heparin Dependent Antibody test maybe unreliable.

 

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