Decoding the Hepatitis Panel: A No-Nonsense Guide for NPs Five markers, dozens of combinations, one cheat sheet you'll actually use in clinic.
If you've ever stared at a hepatitis B panel wondering what all those positives and negatives actually mean , you're not alone. This is one of the most commonly misinterpreted lab panels in primary care—and getting it wrong can mean missing a chronic infection, over-vaccinating a patient who's already immune, or sending someone into a panic unnecessarily. Let's break it down. The Big Five: Hepatitis B Markers A standard hepatitis B panel involves five serologic markers. Each one tells a different part of the story: HBsAg (Surface Antigen) — The hallmark of active infection. If this is positive, the patient is infected and infectious. Present in both acute and chronic HBV. Anti-HBs (HBsAb) (Surface Antibody) — The protective antibody. Develops after recovery from infection OR after successful vaccination. A level >10 mIU/mL is considered protective. Anti-HBc total (HBcAb) (Core Antibody, Total) — A marker of any past or present H...