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Review Question - QID 213748

Atrioventricular (AV) Heart Block Atrioventricular (AV) Block AV Blocks Types Electrocardiogram Findings Treatment   Comments First degree AV block ↑ PR interval (> 0.2 secs) 1:1 ratio of P waves and QRS complexes No treatment is required unless other ECG changes (prolonged QRS)   Typically s QID: 213748 (M2.OMB.19.4758)
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QID 213748 (Type "213748" in App Search)
A 59-year-old man presents to the emergency department after an episode of syncope. He states that earlier today, he was working around his home when he began to suddenly feel lightheaded, and then lost consciousness. His wife witnessed the event, and states that after he fell to the ground, she observed brief "jerking" movements of his arms. She states he regained consciousness after 30 seconds and was immediately back to his baseline level of mentation. His temperature is 99.0°F (37.2°C), blood pressure is 130/82 mmHg, pulse is 60/min, and respirations are 14/min. On exam, he is well appearing. Cardiac and pulmonary exams are unremarkable. Neurologic exam reveals a stable gait with cranial nerves intact. An electrocardiogram is obtained as shown in Figure A. Which of the following is the most likely diagnosis?
  • A
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  • A