What this test is
The test detects the surface protein of hepatitis B in blood. Persistence beyond six months indicates chronic infection, which can lead to chronic hepatitis, cirrhosis and liver cancer.
Category: Immunology
HBsAg Test
HBsAg testing detects the surface antigen of hepatitis B virus. A positive result means the virus is present and can be transmitted. It is a common item in pre-employment health checks.
What it is used for, and who should test
- Pre-employment screening, particularly for food handling and childcare roles
- Antenatal screening to prevent transmission to the baby
- Screening blood donors and household contacts of people with hepatitis B
Sample and preparation
- Sample
- 3-5 mL of blood in a serum tube
- Preparation
- No fasting required; results are usually ready in about 30 minutes.
Where to get tested
Samples are collected and results issued at S.F. Laboratory, the in-house laboratory of BK5 Med Health Clinic in Don Hua Lo, Chon Buri. No appointment is needed; walk in during opening hours.
- Sample collection at BK5 Clinic, 149/6-7 Don Hua Lo, Chon Buri District, Chon Buri 20000
- Open Monday-Friday 08.30-20.00 and Saturday 08.30-17.00
- Ask questions or book ahead on LINE @824xsgsj or call 063-223-6161
The information on this page is general knowledge to support your decisions and is not personal medical advice. Interpreting results and planning treatment requires assessment by a doctor. Please consult our medical staff before deciding on testing or treatment.
Related services
Need a pre-employment check or a medical certificate?
BK5 Clinic provides pre-employment health checks, risk-factor screening, 5-disease screening, work-at-height checks and drug screening, with medical certificates and summary reports for employers.
Immunology
Frequently asked questions about this test
What should I do if HBsAg is positive?
See a doctor for liver function and viral load testing. They will assess whether monitoring or treatment is needed and advise how to avoid passing the virus on.
How is immunity checked?
With the Anti-HBs (HBsAb) test, which shows whether vaccination or past infection has given you protective antibodies.
How should I prepare for HBsAg Test?
No fasting required; results are usually ready in about 30 minutes.
How long do results take?
About 30 min, depending on the laboratory workload that day. Our staff will confirm the collection time when you are served.
Where can I have this test done?
Samples are collected and results issued at S.F. Laboratory, the in-house laboratory of BK5 Med Health Clinic in Don Hua Lo, Chon Buri. No appointment is needed; walk in during opening hours.
How much does HBsAg Test cost?
Prices are not shown on this website. Ask for pricing and packages on LINE @824xsgsj or call 063-223-6161.
Contact us
Book a visit or ask a question
Add us on LINE @824xsgsj to ask about tests and pricing, or fill in the form below and our team will get back to you as soon as possible.
Phone
063-223-6161LINE Official
@824xsgsj
Address
149/6-7 Don Hua Lo, Chon Buri District, Chon Buri 20000, Thailand
Get directions (Google Maps)Opening hours
- Monday - Friday
- 08.30 - 20.00
- Saturday
- 08.30 - 17.00