A 62-year-old man with a 40-pack-year smoking history presents with substernal chest pain that began 6 hours ago while mowing his lawn. The pain radiates to his left arm and is accompanied by diaphoresis and dyspnea. His ECG shows ST-segment elevation in leads II, III, and aVF. Which of the following coronary arteries is most likely occluded?
- A)Left anterior descending artery
- B)Left circumflex artery
- C)Diagonal branch of the LAD
- D)Left main coronary artery
- E)Right coronary arteryGABARITO
Explicação
Inferior wall MI is classically associated with RCA occlusion. The inferior wall is supplied by the RCA in approximately 80% of the population. ST elevations in leads II, III, and aVF indicate inferior myocardial infarction. Ver explicação completa e trilha adaptativa →