ClinIQ Lexicon · Abbreviation
STEMI — ST-Elevation Myocardial Infarction
What STEMI means
STEMI is the MI subtype defined by persistent ST-segment elevation on ECG, reflecting complete coronary occlusion and transmural ischemia. It is a time-critical emergency where infarct size and mortality scale directly with delays to mechanical or pharmacologic reperfusion.
STEMI in clinical practice
High-yield skills include localizing the culprit artery from lead groups — anterior V1–V4, inferior II/III/aVF — and recognizing reciprocal changes. The ClinIQ MI article drills ECG localization patterns and reperfusion timelines that dominate cardiology question banks.
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