Supraventricular tachycardia Quiz: Ace Your Exams
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A 37-year-old woman presents to the emergency department for evaluation of the acute onset of palpitations and lightheadedness. The patient was sitting at her desk when the symptoms began abruptly. She has otherwise been in her usual state of health. She has no significant past medical history and does not take any medication. Temperature is 37°C (98.6°F), pulse is 170/min and regular, respirations are 22/min, blood pressure is 120/74 mmHg, and oxygen saturation is 99% on room air. The patient is well appearing but anxious. Cardiopulmonary examination is otherwise unremarkable. Lead II of the patient’s electrocardiogram (ECG) is shown below. Which of the following is the best next step in management?

Reproduced from: Wikipedia

Reproduced from: Wikipedia
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