What is HBsAG?
Hepatitis B tests may be used for a variety of reasons. Some of the tests detect antibodies produced in response to HBV infection; some detect antigens produced by the virus, and others detect viral DNA. Generally, one set of tests is used to determine the cause of acute symptoms while another set of tests may be used after a diagnosis is made, to monitor possible progression of the disease, to detect chronic infection and/ or carrier status
Purpose of Test
Often used to screen for and detect HBV infections. It is the earliest indicator of acute hepatitis B and frequently identifies infected people before symptoms appear. Undetectable in the blood during the recovery period; it is the primary way of identifying those with chronic infections.
Test of Result Interpretation
- Negative : < 0.2
- Positive : > or = 0.2
No preparation required can collect the blood sample at any time.