Clarilab

Infections

Hepatitis B (HBsAg) test

Also called HBsAg, hepatitis B

Looks for hepatitis B virus.

Why it's done

Routine in pregnancy and before surgery; also with liver problems.

What a high result can mean

Reactive means hepatitis B infection; in pregnancy the baby gets a vaccine and antibodies at birth.

Got a report with Hepatitis B (HBsAg)?

Upload the PDF to Clarilab: it reads the values in your browser, flags anything out of range and tracks your results over time.