2023年6月30日 · What Is the HBsAg Test? HBsAg test is a blood test that detects hepatitis B surface antigen (HBsAg). HBsAb is a protein on the surface of the hepatitis B virus. High levels of HBsAg typically indicate an active hepatitis B virus infection.

HBsAg (hepatitis B surface antigen) is the first serologic marker to appear in a new acute infection, which can be detected as early as 1 week and as late as 9 weeks (range: 6-60 days), with an average of one month after exposure to the hepatitis B virus (HBV).

HBsAg (Hepatitis B surface antigen) - A "positive" or "reactive" HBsAg test result indicates that a person is infected with hepatitis B. This test can detect the presence of the hepatitis B virus (called the “surface antigen”) in the blood.

The HBsAg test, also known as the Hepatitis B Surface Antigen Test, is a blood test used to detect the Hepatitis B virus (HBV). The test specifically identifies the surface antigen of the virus, which is a protein found on the surface of the virus.

HBsAg: HBsAg is a protein on the surface of HBV that can be detected in high levels in serum during acute or chronic HBV infection. The presence of HBsAg indicates that the person is infectious, except when it might be transiently positive within 30 days after a …

Hepatitis B Surface Antigen (HBsAg) – The "surface antigen" is a protein found on the surface of the hepatitis B virus that is present in the blood of someone who is infected. If this test is positive or "reactive," then the hepatitis B virus is present.

The Hepatitis B Surface Antigen (HBsAg) Test is a blood test used to detect the presence of a protein on the surface of the Hepatitis B virus. It's the primary screening test to diagnose Hepatitis B infection and assess whether someone is currently infected with the virus.