1 MCQs in Medicine for NEET PG
A 68-year-old man presents with recurrent syncope. His 12-lead ECG shows a sudden pause in the rhythm where a P wave is missing, and the duration of this pause is exactly twice the underlying PP interval with no progressive shortening of PP intervals before the dropped beat. The rhythm shown at **B** in the diagram is consistent with this finding. Which of the following best distinguishes this arrhythmia from sinus arrest?
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