Kardiologischer Fall: 18-jährige Frau mit Tachykardie und Dyspnoe von Joseph Alpert, MD

An 18-year-old woman presents to the emergency department because she noted that her heart was beating "very fast" and that she was short of breath. In the emergency department, her heart rate was 220 beats/min and her blood pressure was 84/60 mmHg. The rest of the physical examination findings were normal, as were all blood test results. A few weeks ago, she received a diagnosis of Wolff–Parkinson–White syndrome. Which of the following ECG findings would be consistent with this diagnosis?

An 18-year-old woman presents to the emergency department because she noted that her heart was beating "very fast" and that she was short of breath. In the emergency department, her heart rate was 220 beats/min, and her blood pressure was 84/60 mm Hg. The rest of the physical examination findings were normal, as were all blood test results. A few weeks ago, she has received a diagnosis of Wolf–Parkinson–White syndrome. An ECG taken at the emergency department reveals normal sinus rhythm. Which of the following is the best next step in management?