[Verified Answer]: A 31-year-old woman comes to the emergency…

A 31-year-old woman comes to the emergency department 15 minutes after she had sudden onset of rapid heartbeat, shortness of breath, dizziness, and excessive sweating. The patient’s symptoms began after she drank a glass of wine. She says she had a similar episode in the past after she drank a cocktail, but the symptoms stopped suddenly a few minutes after they started. Temperature is 98.2°F, heart rate is 190 per minute, respirations are 28 per minute, and blood pressure is 64/40. Oxygen saturation is 89% on room air. The patient is diaphoretic and in acute distress. Electrocardiography shows narrow QRS complex tachycardia with no evidence of apparent conduction. Which of the following is the most appropriate management at this time a cold water immersion of the face B intravenous administration of de Jackson C intravenous administration of metoprolol D intravenous administration of procainamide or E synchronized cardioversion.