Hepatitis B Surface Antibody (Anti-HBs)

• The Hepatitis B Surface Antibody (Anti-HBs) Test is a blood test that detects antibodies against the surface antigen of the Hepatitis B virus (HBV)
• These antibodies are produced in response to either previous Hepatitis B infection or vaccination against HBV

• To determine immunity status against Hepatitis B virus
• To assess the effectiveness of Hepatitis B vaccination
• To confirm recovery from past Hepatitis B infection
• To screen individuals at risk of Hepatitis B infection, such as healthcare workers

• Collection of a blood sample
• Laboratory analysis to detect and quantify antibodies against the Hepatitis B surface antigen
• Reporting of results to doctors for diagnostic and monitoring purposes

• Positive Result: Indicates immunity to Hepatitis B virus due to vaccination or past infection
• Negative Result: Indicates no detectable antibodies, suggesting susceptibility to Hepatitis B infection

• Qualitative Results: Reported as positive or negative for the presence of antibodies
• Quantitative Results: Sometimes reported as titers indicating the level of antibodies present
• Interpretation: Hepatitis B Surface Antibody (Anti-HBs) Test helps in assessing immunity status and determining the need for vaccination or further testing

Q. What is the Hepatitis B Surface Antibody (Anti-HBs) Test?
Hepatitis B Surface Antibody (Anti-HBs) Test is a blood test that checks for antibodies against the Hepatitis B virus surface antigen to determine immunity

Q. Why do I need this Hepatitis B Surface Antibody (Anti-HBs) Test?
To see if you are protected against Hepatitis B from vaccination or past infection

Q. How is the Hepatitis B Surface Antibody (Anti-HBs) Test performed?
A blood sample is taken and analyzed in a lab to check for antibodies against the Hepatitis B virus surface antigen

Q. What does a positive result mean?
It means you have immunity against Hepatitis B, either from vaccination or past infection

Q. What does a negative result mean?
It means no antibodies were found, indicating you are not immune to Hepatitis B and may need vaccination

Q. Can this Hepatitis B Surface Antibody (Anti-HBs) Test tell if I have Hepatitis B now?
No, it only shows if you are immune. Other tests are needed to diagnose current Hepatitis B infection

Q. How long does immunity from vaccination last?
Immunity can vary, but booster shots may be recommended for continued protection, especially in high-risk situations