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Hepatitis B Surface Antigen
MessageNOTE: Spin down, can send mother tube and refrigerate
Test Code
HBSAG
Alias/See Also
Performed at Sonora Quest Laboratory, test code 8020
Performed on-site for BCCH
WyMCC performs for TCH, WMC and PCMH
Performed at NCMC for OCH
Performed on-site for BCCH
WyMCC performs for TCH, WMC and PCMH
Performed at NCMC for OCH
CPT Codes
87340
Preferred Specimen
SST
Instructions
For testing performed at Sonora Quest Laboratories, see link below for specimen details, methodology, setup schedule and reference ranges.
Clinical Significance
Surface antigen usually appears in the serum after an incubation period of 1 to 6 months following exposure to Hepatitis B virus and peaks shortly after onset of symptoms. It typically disappears within 1 to 3 months. Persistence of Hepatitis B surface antigen for greater than 6 months is a prognostic indicator of chronic Hepatitis B infection.
Note: When only a single test, Hepatitis B Surface Antigen, is ordered to diagnose Hepatitis B in a pregnant woman, additional tests such as liver enzymes should be ordered to confirm the diagnosis
Note: When only a single test, Hepatitis B Surface Antigen, is ordered to diagnose Hepatitis B in a pregnant woman, additional tests such as liver enzymes should be ordered to confirm the diagnosis
Additional Information
Hepatitis B Surface Antigen w/Rflx Confirmation
