HBsAg Positive: Results of a Hepatitis B Blood Test
网页2023年6月30日 · A positive HBsAg result means you have an active hepatitis B virus (HBV) infection and are contagious. HBV is spread through contact with infected body fluids, such as blood and semen. This article discusses the HBsAg test and other tests used to confirm hepatitis B infections.
Clinical Testing and Diagnosis for Hepatitis B
网页2024年3月6日 · 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 dose of HepB vaccine.
HBsAg - Wikipedia
网页HBsAg (also known as the Australia antigen) is the surface antigen of the hepatitis B virus (HBV). Its presence in blood indicates existing hepatitis B infection. Structure and function
Hepatitis B - Symptoms and causes - Mayo Clinic
网页Hepatitis B infection may be short-lived, also called acute. Or it might last a long time, also known as chronic. Acute hepatitis B infection lasts less than six months. Your immune system likely can clear acute hepatitis B from your body, and you should recover completely within a few months.
Hepatitis B virus: Screening and diagnosis in adults - UpToDate
网页2023年4月28日 · This topic will focus on the approach to testing and screening for HBV infection in adults and will review the changes in hepatitis B antigens, antibodies, and DNA levels that occur during acute and chronic infection and how these tests can be …
Hepatitis B Surface Antigen - University of Rochester Medical ...
网页This test looks for hepatitis B surface antigens in your blood. The test is used to find out whether you have a recent or long-standing infection from the hepatitis B virus (HBV). HBV has proteins called antigens on its surface that cause your immune system to …
Understanding Your Test Results - Hepatitis B Foundation
网页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, with an average of one month after exposure to the hepatitis B virus (HBV).