In Part 3 of How to Read an Electrocardiogram, we will look at a series of three lectures given by myself to my medical students, residents and fellows; on the Basics of ECG rhythms and axis orientation, Basic Rhythm interpretation and problems, and finally Dysrhythmias. If you learn nothing else, please learn we are not talking about arrhythmias. "A" means the absence of something so the only "arrhythmia" is "asystole" or the absence of a rhythm...