Which term describes pacing that captures the chamber without eliciting a His bundle signal and is distinct from VANERP?

• A. VANERP
• B. AVNERP
• C. AVNERP
• D. Noncapture pacing

Answer: (B)

The key idea here is identifying pacing outcomes based on whether the stimulus captures the heart muscle and whether it also activates the His bundle. When you pace a chamber and you observe a paced response without a His bundle signal, you’ve achieved chamber capture without engaging the His-Purkinje system. The term that describes this specific situation is AVNERP. It designates pacing that successfully captures the chamber but does not produce a His bundle response, making it distinct from VANERP, which refers to a different pacing behavior related to the His/Purkinje conduction pattern. Noncapture pacing, by contrast, means the stimulus fails to capture the chamber at all, which is not the scenario described.