10 Steps to Learn ECG Interpretation Learn the Basics of a 12-lead ECG Tracing. ... Determine Heart Rate on the ECG. ... Determine Axis on the ECG. ... Learn Abnormal Heart Rhythms. ... Learn Chamber Hypertrophies and Bundle Blocks. ... Learn Acute MI and Ischemic ECG Findings. ... Learn the Everything Else Including Atypical ECG Findings. More items...