Specimen Requirements

Title

HEPATITIS Bs (SURFACE) ANTIGEN

Specimen Requirement

1 SST/2.0 mL serum. After 30 minutes of clotting, promptly centrifuge and refrigerate.

Methodology

Chemiluminescent Microparticle Immuno Assay (CMIA)

Stability

Room Temp: 14 days; Refrigerated: 31 days; Frozen: 2 months

Reference Range

By Report

Turnaround

1 day unless confirmatory testing indicated

Clinical Use

Hepatitis B surface antigen (HBsAg) is a distinctive serological marker of acute or chronic hepatitis B infection. HBsAg is the first antigen to appear following infection with HBV and is generally detected 1-10 weeks after the onset of clinical symptoms.

Test Code

GBSAG