Using straightforward, easy-to-understand language, this essential resource helps you understand how the heart functions and how to interpret ECGs - essential knowledge that will allow you to anticipate the appropriate treatment for each. Now updated to reflect the 2010 emergency cardiovascular care guidelines, it provides an overview of the normal conduction pathway of the heart, as well as comprehensive coverage of basic cardiac dysthythmias that highlights what happens in the heart's electrical conduction system to cause the appearance of a dysrhythmia. Case studies, flashcards, puzzles, and more than 325 practice strips are included to reinforce your understanding of key concepts and encourage you to apply your knowledge.