Book excerpt: Electrocardiography for Health Care Personnel prepares users for a national ECG certification examination, as well as providing ECG skills training for health care students and health care personnel who are interested in mastering additional skills. The text includes the essential skills needed to perform an ECG, including anatomy of the heart, basic characteristics, equipment, appropriate intervention, and other technical applications, such as Holter monitoring and stress testing. Emphasis throughout the text is placed on troubleshooting.