Supraventricular arrhythmias Quiz: Ace Your Exams
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A 61-year-old male presents to the emergency department due to lightheadedness. The patient was drinking coffee this morning, noticed a “fluttering” sensation in his chest, and subsequently felt lightheaded. He is otherwise asymptomatic and has not seen a physician in many years. He smokes one to two cigarettes per day and drinks a glass of wine with dinner nightly. Temperature is 37.0°C (98.6°F), pulse is 134/min, respirations are 15/min, blood pressure is 142/92 mmHg, and oxygen saturation is 100% on room air. Physical examination is notable for an obese male in no acute distress. Cardiopulmonary exam is without evidence of gallops, rubs, murmurs, or rales. Initial electrocardiogram is demonstrated below:
Image reproduced from Wikimedia Commons
Which of the following is the most likely etiology of this patient’s electrocardiographic findings?
Image reproduced from Wikimedia Commons
Which of the following is the most likely etiology of this patient’s electrocardiographic findings?
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