Hepatitis B Surface Antigen Test

The Hepatitis B Surface Antigen (HBsAg) Test is a blood test used to detect the presence of the hepatitis B surface antigen, a protein on the surface of the hepatitis B virus. This test is typically used to:

• Diagnose active hepatitis B infection
• Screen for hepatitis B in individuals at risk
• Monitor the progress of a hepatitis B infection or response to treatment

A positive result indicates an active infection, while a negative result suggests the absence of the virus. The Hepatitis B Surface Antigen Test is crucial for early detection and management of hepatitis B, helping to prevent liver damage and transmission of the virus.