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What is a Hep B titer? A Hep B titer generally refers to a special test known as the Hepatitis B Surface Antibody test. The Hep B test is frequently used to check the blood for evidence of immunity to Hepatitis B. It is not a shot or vaccination and the analysis needs to be performed by a laboratory.
Other tests such as a liver panel or individual tests such as bilirubin, ALT, and AST may be performed to help evaluate liver function in an individual suspected of having hepatitis. Hepatitis A IgM antibodies develop early in the course of infection, so a positive hepatitis A IgM test is usually considered diagnostic for acute hepatitis A in a person with signs and symptoms.