This ECG is taken from an elderly woman with chest pressure radiating to left shoulder for 30 minutes. She also complained of nausea with vomiting. Her family offered a history of unspecified cardiac disease, hypertension, hypercholesterolemia, and dementia.
The ECG shows ST elevation in Leads I and aVL, with reciprocal ST depression in Leads III and aVF. ST segments have an abnormally flat shape in Leads aVL, II, III, aVF, V5 and V6.