Hepatitis B Surface Antigen (HBsAg)
Also known as: HBsAg, Hepatitis B Test
Category: InfectionSample: BloodReport in: Same Day
Screens for hepatitis B infection; done routinely in pregnancy and before surgery.
Why it's done
- Screen for hepatitis B
What it measures
Hepatitis B surface antigen.
Preparation
No fasting needed.
Normal range
Non-reactive
Understanding results
Reactive means hepatitis B infection; further tests needed.
Related conditions
Ordered by
Frequently asked questions
Why is the Hepatitis B Surface Antigen (HBsAg) test done?
Screen for hepatitis B
How do I prepare for Hepatitis B Surface Antigen (HBsAg)?
No fasting needed.
What is the normal range for Hepatitis B Surface Antigen (HBsAg)?
Non-reactive
Medically reviewed by
Medical review pending
Last updated
9 October 2026
Sources
- ICMR standard treatment workflows
- Reference ranges vary by laboratory - always read your report with your doctor
This information is for general awareness and does not replace advice from a qualified doctor. Do not start, stop or change any medicine without medical advice.