Hepatitis B Antibody - Immunity
The Hepatitis B Antibody (Anti-HBs) Test measures Hepatitis B surface antibodies in your blood to determine if you’re immune to Hepatitis B. This can happen due to past infection or successful vaccination. Hepatitis B is a virus that affects the liver and is spread through blood and bodily fluids. Checking for immunity is especially important for healthcare workers, people in high-risk jobs, travellers, or those needing the Hepatitis B vaccine.
Test details
Sample type
Blood
Time of day
No Specific Time Needed
Fasting required
No
Results timeframe
Within 7 days
Preparation
No special preparation required.
What's measured in this test
Hepatitis B Antibody
Shows immunity to hepatitis B virus.
Common reasons for testing
- Checking immunity after vaccination – Confirms if the Hepatitis B vaccine has worked and you are protected.
- Screening before travel – Ensures you have immunity before visiting areas with a higher risk of Hepatitis B exposure.
- Testing before medical or healthcare work – Required for healthcare professionals, first responders, and people working in high-risk environments.
- Routine health screening – Useful for anyone unsure of their Hepatitis B status or immunity level.