If the initial electrocardiogram (ECG) is not diagnostic or if the patient remains symptomatic and there is clinical suspicion for ACS, serial ECGs, initially at 15-30 minute intervals ...

The diagnosis of unstable angina and non-STEMI is primarily based on the clinical presentation supported by the ECG and laboratory assessment of specific cardiac enzymes. The ECG may show multiple ...

As the term STEMI implies, the 12-lead ECG shows significant ST segment elevation during STEMI, unlike the ST depressions and ST-T wave changes seen during unstable angina and non-ST segment ...