Mastering ECG interpretation takes time and effort. This online tutorial is designed to be concise and focused on only what you need to know, yet very thorough. After reading through the following sections highlighting the different parts of the ECG, be sure to visit all the ECG Reviews and Criteria pages to learn how to diagnose specific conditions and rhythms — from myocardial infarctions to chamber hypertrophies. Then, challenge yourself with 400 ECG questions in Quizzes, featuring detailed answers and links to pertinent explanation pages. Finally, test your real world ECG interpretation skills through 50 clinical scenarios in Cases. Once completed, a thorough understanding of ECG interpretation will be attained. Continue to maintain your skills by visiting the Blog, updated regularly with new insight from experts.