what test for hep b
1 To determine whether acute signs and symptoms are due to HBV infection; two tests, hepatitis B surface Ag and hepatitis B core antibody IgM, may be performed as part of an acute viral hepatitis panel along with tests for hepatitis A (HAV) and hepatitis C (HCV) to determine which virus may be causing the infection.epatitis B tests may be ordered when someone has signs and symptoms associated with acute hepatitis to determine if they are due to infection with HBV. Some of these include: 1  Fever. 2  Fatigue. 3  Loss of appetite. 4  Nausea, vomiting.