The Internet is rich in cardiology resources. Below you will find my top choices, including heart sounds, self-quizzes, and electrocardiogram (ECG) tutorials. The University of Utah's ECG learner is ...

There are two different rates that can be determined on an ECG. The atrial rate is indicated by the frequency of the P waves. The ventricular rate is indicated by the frequency of the QRS complexes.

A combination of the Q wave, R wave and S wave, the “QRS complex” represents ventricular depolarization. This term can be confusing, as not all ECG leads contain all three of these waves; yet a “QRS ...

Classic changes of ischemia may be described or explained as follows: 1. ST-segment elevations or depressions that are usually localized (but may be diffuse) and may be associated with such T-wave ...