Identifying an acute myocardial infarction on the 12-lead ECG is the most important thing you can learn in ECG interpretation ... aVL can show reciprocal ST segment depression in leads II ...

Learning all of ECG interpretation is going to take time ... Likewise, know when ST segment depression is due to digoxin ECG changes. Some repetition and memorization is required.

ECG interpretation in athletes requires careful analysis to ... These include findings suggestive of cardiomyopathy such as T-wave inversion, ST depression, pathological Q-waves, left axis deviation ...