In conjunction with symptoms consistent with myocardial ischemia, the following are the ECG criteria diagnostics of STEMI:19

- New ST-elevations ≥ 0.1 mV in 2 or more contiguous leads except V2-V3
- New ST-elevations in V2-V3 with the below criteria:
- ≥ 0.25 mV in men aged < 40 years
- ≥ 0.2 mV in men aged ≥ 40 years
- ≥ 0.15 mV in women

Figures 2 - 4 demonstrate typical patterns of anterior, inferior, and lateral wall STEMI, respectively.