- Transmural myocardial infarction within the last 6 months prior to step 2 registration; evidence of recent myocardial infarction or ischemia by the findings of S-T elevations of >= 2 mm using the analysis of an electrocardiogram (EKG) performed within 28 days prior to step 2 registration (Note: EKG to be performed only if clinical suspicion of cardiac issue)