Question: what is hep b igg?
Answer: Sometimes an anti-HBc IgM or anti-HBc IgG blood test may be ordered to clarify if a person has a new “acute” hepatitis B infection or “chronic” infection. A positive/reactive anti-HBc IgM test result usually indicates a new acute infection. A positive/reactive anti-HBc IgG test usually indicates a chronic infection.