Supraventricular tachycardia Quiz: Ace Your Exams
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A 72-year-old woman presents to the emergency department for evaluation of cough, recurrent palpitations, and wheezing for the past four days. The patient reports associated low-grade fevers and states that she was recently visiting her grandchildren who are also ill. The patient has a history of hypertension, diabetes, hyperlipidemia, coronary artery disease, and emphysema for which she is on 2 liters of continuous supplemental oxygen. She reports increasing her oxygen to 3L over the past 24 hours. The patient smokes 1 pack of cigarettes per day and drinks alcohol socially. Temperature is 38°C (100.4°F), pulse is 132/min and irregular, respirations are 22/min, blood pressure is 110/64 mmHg, and oxygen saturation is 96% on 3 L nasal cannula. Neck pulses are normal. Cardiopulmonary exam reveals wheezing throughout the lung fields, coughing, and rales over the left lung base. Which of the following tachyarrhythmias is most likely to be seen on electrocardiogram (ECG)?
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