1 MCQs in Medicine for NEET PG
A 28-year-old woman presents with recurrent episodes of palpitations and presyncope. Her resting 12-lead ECG is shown. The pattern marked **A** (short PR interval <120 ms with normal narrow QRS and no delta wave) is obtained after termination of a regular narrow-complex SVT by carotid sinus massage. Which of the following best describes the electrophysiological mechanism underlying this ECG pattern and the patient's arrhythmia?
Ready to test yourself?
Test your Medicine knowledge with AI-powered MCQs and detailed explanations — no signup required to try.
Sign up free and practice all 1 Lown-Ganton-Levine (LGL) Syndrome — Short PR Without Delta Wave MCQs with AI-powered explanations tailored to your performance.
Create Free Account