This workbook was written with the intent of providing learners with an introduction to 12-15 Lead ECG Interpretation. The focus is on the acquisition and interpretation of ST segment myocardial infarction (STEMI) and other ECG changes in the acute setting. As a workbook, it is designed to assist you in reviewing the information covered in a 12 Lead interpretation course. However, what is new in the 4th edition is a series of QR Codes that link to video content related to the book. This makes it possible for the reader to learn ECGs without the added benefit of a course. This book is also ideal for educators who teach this subject. It's ideal because it's a workbook and is inexpensive for your students. Why have them pay for a full textbook when what you need is a textbook. Instructor slides are also available for purchases of 10 or more books. Topics covered in the book: Review of coronary anatomy What the 12-15 Lead ECG can reveal about the patient About the Leads Axis/vector calculation - a simple approach Ischemia, injury and infarction A.M.I. management Chamber enlargement Bundle branch blocks VT vs. SVT: what the 12 Lead can reveal"