What does the Hep A AB Total test measure?

The Hep A AB Total test measures the total antibodies against the Hepatitis A virus, which includes both IgM and IgG antibodies. This is significant because the presence of IgM antibodies typically indicates a recent infection with Hepatitis A, while IgG antibodies indicate past exposure or immunity, either from previous infection or vaccination. By measuring both types of antibodies, the test provides a comprehensive view of an individual's immune response to Hepatitis A. This is crucial for diagnosing current or past infections and assessing immunity status, which helps inform clinical decisions regarding treatment and prevention.