1 MCQs in Medicine for NEET PG
A 62-year-old man with prior anterior STEMI (LAD stent 3 years ago), HFrEF (EF 25%), hypertension, and type 2 diabetes collapses at home. Bystander CPR is initiated immediately. EMS arrives within 6 minutes and places AED pads. The rhythm strip shows the pattern marked **B** in the diagram. Which of the following best describes the underlying electrophysiological mechanism of this rhythm?
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