A 72-year-old man with a history of hypertension and heart failure with reduced ejection fraction (HFrEF) presents the emergency department due to sudden onset of dyspnea,palpitations, and dizziness. His blood pressure is 78/50 mmHg and heart rate is 120 bpm irregularly irregular.
ECG is shown in the attached image.
Keep going — a set of ten like this one, one at a time.
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