Heart blocks Quiz: Ace Your Exams
Get ready to dominate your medical and nursing exams by using our dynamic quizzes to elevate your knowledge and increase your confidence. Whether you're gearing up for the USMLE®, COMLEX®, or your next in-class assessment, Osmosis quizzes tackle key topics in pathology, diagnostics, and treatment approaches. By honing in on clinical readiness and decision-making, we make sure the knowledge you gain empowers you both in the classroom and in real-world practice. Jump in and supercharge your exam prep!
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A 65-year-old man comes to the clinic with chest discomfort. Over the past week he has felt heart palpitations that occur multiple times per day. He denies chest pain, shortness of breath, or lightheadedness. Medical history is significant for hypertension, coronary artery disease, benign prostatic hyperplasia, and myasthenia gravis. He is recovering from a recent myasthenia gravis flare characterized by double vision and fatigable chewing. Medications include atorvastatin, amlodipine, carvedilol, terazosin, and pyridostigmine. His temperature is 37.0°C (98.6°F), pulse is 70/min, respirations are 18/min, and blood pressure is 120/80 mmHg. Physical exam shows mild bilateral ptosis and a regularly irregular heartbeat. ECG is obtained and shows the following:
Reproduced from: Wikipedia
Which of the following is the most likely cause of this patient’s ECG findings?
Reproduced from: Wikipedia
Which of the following is the most likely cause of this patient’s ECG findings?
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