A 67-year-old man, without any previous cardiac history, presents to the emergency department with complaints of substernal chest discomfort associated with diaphoresis and nausea. His symptoms began ...

A 52-year-old man is admitted to the hospital with complaints of increasing episodes of substernal chest discomfort. He is placed on telemetry. His dose of beta-blocker is increased and long-acting ...

Electrocardiography is performed in the emergency department to test for myocardial infarction. Image courtesy of Harrington et al. A 56-year-old woman presents to a rural emergency department with ...

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