a positive stress induced myocardial ischemia with significant horizontal st depression changes in the stress ecg

arrhythmia attack beat blood cardiac cardio cardiogram cardiologist cardiology care chart clinic coronary diagnostic disease diseases ecg ekg electrical electrocardiogram electrocardiograph electrode examination frequency graph graphic health healthy heart hospital hypertension infarct infraction ischemia ischemic medical medicine pacemaker patient positive pressure pulse qrs rhythm stethoscope stress tachycardia technology test wave