Hep A

Hep A Ab, IgM 

This test detects specific antibodies created to combat the hepatitis A virus.  This measures IgM antibodies to confirm that hepatitis A is present, as these antibodies only last for about 3-12 months and would not be present if the virus was not recently active.  It can also confirm that a hepatitis A vaccine was effective by ensuring that these antibodies are present after a vaccination.