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![77-Year-Old Man Presents with Dyspnea](https://www.jucm.com/wp-content/uploads/2022/02/A-77-Year-Old-Man-Presents-with-Despnea-ECG-600x347-1.jpg)
KEY QUESTIONS
- What diagnosis explains the widened QRS?
- What are the electrocardiographic criteria for making this diagnosis?
- What rule(s) can help diagnose acute myocardial infarction with an ECG like this?
A 77-Year-Old Man Presents with Dyspnea
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