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Hepatitis B Surface Antigen
MessageSRHC Clients:
- 1 yellow top tube
- transport to SRHC laboratory within 8 hours
Test Code
HBsII
Alias/See Also
HBAG
Hep B Surface Ag
HBsAg
Hep B Surface Ag
HBsAg
CPT Codes
87340
Preferred Specimen
1 yellow top tube
Minimum Volume
1 mL
Other Acceptable Specimens
1 Yellow top tube or 1 Red top tube
Instructions
Please note: when only a single test, Hepatitis C Surface antigen, is ordered to diagnose Hepatitis B infection in a pregnant woman, additional tests, such as liver enzymes, should be ordered to confirm the diagnosis.
Transport Container
1 yellow top tube
Transport Temperature
Refrigerated
Specimen Stability
Refrigerated: 14 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis
gross lipemia
gross lipemia
Methodology
Immunoassay
Setup Schedule
Daily
Report Available
4-8 hours
Limitations
Results obtained from immunosuppressed patients should be interpreted with caution. Patients receiving mouse antibody therapy may produce false-negative results.
Reference Range
Non-reactive
Clinical Significance
Surface antigen usually appears in the serum after an incubation period of 1-6 months following exposure to Hepatitis B virus and peaks shortly after onset of symptoms. It typically disappears within 1-3 months. Persistence of Hepatitis B surface antigen for greater than 6 months is a prognostic indicator of chronic Hepatitis B infection.
Performing Laboratory
SRH Main Laboratory
