Hepatitis B Surface Antigen Blood Test
1 Biomarker | Venous Blood Test | UKAS-accredited laboratory
Hepatitis B surface antigen, which indicates current hepatitis B infection. Designed for people screening for hepatitis B, including for occupational health requirements, this test gives you a clear laboratory result alongside the reference range so you can see exactly where you sit.
Results are typically available within 2 working days from when your sample reaches the laboratory (excluding weekends and bank holidays).
Doctor's comments are optional on individual markers. Add them for £15.00 at checkout, or your result is issued as a laboratory report showing your value alongside the reference range.
A laboratory result is not a diagnosis. If you have urgent or worrying symptoms, contact your GP or call 111. In an emergency call 999.
Frequently asked questions
What does the Hepatitis B Surface Antigen Blood Test measure?
This test measures Hepatitis B surface antigen, a protein on the surface of the hepatitis B virus. Its presence indicates a current hepatitis B infection.
Who is this test for?
Anyone concerned about hepatitis B exposure, people being screened before vaccination, healthcare workers, and those needing testing after a needlestick injury or for travel or visa purposes.
How do I prepare for this test?
- Fasting required 8-12 hours before the test (water only), recommended for glucose and cholesterol/triglyceride accuracy
- Sample timing: between 7:00am and 10:00am
- Stay hydrated; avoid strenuous exercise, heavy meals, and supplements (iron, B12, multivitamins, biotin) for 48 hours prior
- Continue prescribed medications unless otherwise directed
How is the sample collected?
This test requires a venous blood draw, so a finger prick sample is not suitable. You can book at our Livingston clinic, at a partner clinic, or arrange a home visit with one of our nurses.
When will I get my results?
Results are typically available within approximately 3 working days of your sample reaching the laboratory. Every result is reviewed by a doctor before release and delivered securely to your online account. All testing is carried out in a UKAS-accredited laboratory.