Chest pain electrocardiogram

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

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Overview

The key findings to look for on EKG is ST elevation which is characteristic of myocardial infarction. Diffuse ST elevation may point to the diagnosis of pericarditis. Serial EKG's should be obtain to evaluate for continued or progression of myocardial injury over time.

Electrocardiogram

• Electrocardiogram is usually required for initial evaluation.
• ST elevation should require further urgent evaluation for reperfusion therapy.
• Salient findings on ECG are:
  • New ST elevation (>1 mm) or Q waves on ECG (MI)
  • ST depression >1 mm or ischemic T waves (unstable angina)