An electrocardiogram is a picture of the electrical conduction of the heart. By examining changes from normal on the ECG, clinicians can identify a multitude of cardiac disease processes. There are ...

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 ...

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 ...