An ECG reveals ST elevation in leads V1-V4. Which coronary artery is most likely occluded?
- Correct Answer: Left anterior descending (LAD)
- Right coronary artery (RCA)
- Left circumflex artery (LCx)
- Posterior descending artery (PDA)
Explanation: LAD occlusion causes ST elevation in V1-V4 indicating anterior wall myocardial infarction.
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