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Anterior STEMI — RACP Adult Medicine MCQ

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EasyCardiologyAnterior STEMIRACP Adult Medicine

A 58-year-old woman presents with acute chest pain and ST elevation in leads V1–V4. Troponin I is markedly elevated. Which vessel is most likely occluded?

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Correct answer: C — Left anterior descending artery

ST elevation in V1–V4 indicates anterior STEMI. The left anterior descending artery supplies the anterior wall and septum. Occlusion of the LAD is the most common cause of anterior STEMI and carries the highest risk of significant LV dysfunction.

Reference: CSANZ – 2025 – ACS Guidelines