2024年3月6日 · The presence of the total anti-HBc antigen is needed to diagnose a patient with a hepatitis B infection. The results of the HBsAg, anti-HBs, and IgM anti-HBc tests indicate a patient’s type of hepatitis B and if they have developed immunity.

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).

Retesting of patients who are positive for HBsAg shortly after hepatitis B vaccination at a later time is needed to determine the true HBV infection status. ‡Could result from: • Loss of anti-HBs after past resolved infection. HBV DNA is negative. • False-positive total anti-HBc, i.e., susceptible. HBV DNA is negative.

Different serologic “markers” or combinations of markers are used to identify different phases of HBV infection and to determine whether a patient has acute or chronic HBV infection, is immune to HBV as a result of prior infection or vaccination, or is susceptible to infection. Hepatitis B surface antigen (HBsAg): A protein on the surface ...

2023年4月28日 · The identification of hepatitis B virus (HBV) infection was revolutionized by the discovery of Australia antigen, now called hepatitis B surface antigen (HBsAg). During the ensuing two decades, serologic assays were established for …

Only one sample of blood is needed for a hepatitis B blood test, but the "Hepatitis B Panel" includes three parts. All three test results are needed to fully understand someone's hepatitis B status.

HEPATITIS B SEROLOGY . Hepatitis B surface antigen (HBsAg): A protein on the surface of the hepatitis B virus (HBV); it can be detected in high levels in serum during acute or chronic HBV infection. The presence of HBsAg indicates that the person is infectious. The body normally produces antibodies to HBsAg as part of the normal immune response ...

2024年5月14日 · This page provides links to pages with comprehensive information on laboratory testing, serological interpretation, and diagnosis for hepatitis A, hepatitis B, hepatitis C, hepatitis D, and hepatitis E. These links include laboratory testing information for all hepatitis viruses.

2024年10月1日 · The serological panel for hepatitis B includes several tests that check for the presence of specific antibodies or proteins in a sample of your blood: HBsAg (hepatitis B surface antigen): This is a protein that is found on the surface of the hepatitis B virus molecule, a …

serologic testing for hBV infection, like much modern serology, relies on enzyme immunoassay (eiA) techniques for the detection of antigens and antibodies in patient serum. this typically involves incubating patient serum in the presence of reagents within wells coated with antigens or antibodies, which will specifically react with those being t...