ca-mccqe1 MCQ (SBA): Atrial fibrillation with rapid ventricular response

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MediumCardiologyAtrial fibrillation with rapid ventricular responseca-mccqe1ca-rcpsc-emca-rcpsc-im

A 23-year-old woman presents with acute onset palpitations and dyspnoea. ECG shows atrial fibrillation with a ventricular rate of 150 beats/min. She is haemodynamically stable, has normal left ventricular function on previous echocardiogram, and symptoms started 4 hours ago. What is the most appropriate initial management?

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ca-mccqe1 MCQ: Atrial fibrillation with rapid ventricular response — A