What is HbsAg test?
Hepatitis B surface antigen (HBsAg) is a screening test that appears in the Serum at 6 to 16 weeks after exposure to a hepatitis B virus. In acute infection, HBsAg (antigen) usually disappears in 1 to 2 months after the onset of symptoms. However, the persistence of HBsAg for more than 6 months could indicate a chronic hepatitis B infection or if the person is a carrier of the virus.
Why get the HbsAg test?
The hepatitis B surface antigen test (HBsAg) is used to detect a recent or long-standing infection from the hepatitis B virus (HBV). A positive or reactive HBsAg test result means that the person is infected with the hepatitis B virus.
When to take this test?
Frequency to repeat test
Based on doctor advice
Precautions to be taken before for the test
No particular precautions are required, unless it is recommended by your doctor.
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