Hepatitis A Virus (HAV) Antibody, Total LabCorp

The Hepatitis A Virus (HAV) Antibody test is used in the differential diagnosis of hepatitis. This is typically tested in conjunction with anti-HAV, IgM to confirm immunity to hepatitis A. This test measures both IgG and IgM forms of the antibody, but does not differentiate between these two forms. Hepatitis A antibody of IgG type is indicative of old infection and is found in almost 50% of adults.