This updated Third Edition of The Only EKG Book You'll Ever Need provides all the information you need to read EKGs efficiently and accurately, covering everything from the fundamentals of EKG interpretation to the latest advances in pacemaker technology, exercise testing, and electrophysiological studies. You'll understand how the EKG is used in everyday practice and learn to quickly and easily interpret: hypertrophy and enlargement, arrhythmias, conduction blocks, pre-excitation syndromes, and myocardial infarctions.