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ArhamDiagnostics
Immunology & Serology

Hepatitis B Surface Antigen (HBsAg)

Screens for active hepatitis B infection.

Also known as: HBsAg, hepatitis B, hep B screening

We can collect this sample at your home, free of charge. Book a home visit.

Turnaround
Same day
Preparation
No fasting needed. Eat and drink normally.
Sample
Blood sample

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About this test

HBsAg is a protein on the surface of the hepatitis B virus. A positive result means the virus is currently present. Hepatitis B often causes no symptoms for years while quietly damaging the liver, which is why screening matters before surgery, during pregnancy, and for anyone with a household contact who is positive.

What it measures

  • Hepatitis B surface antigen

A note on results. A single test is one part of a clinical picture, not a diagnosis. Discuss your report with a qualified doctor, who will read it alongside your history and examination.

Related to

  • Liver
  • Fever & infection

Often ordered with this