The 89 cases are designed to allow students of emergency medicine to practice the skills they have learned in formal training on interpreting electrocardiograms (ECG). Each scenario depicts a real patient encounter and includes a chief complaint, a brief description of the current illness, vital signs, physical exam findings, pertinent medical history, and an actual pre-hospital ECG to expose students to what they will encounter in the field. The second half of the book contains the answers. Annotation ©2012 Book News, Inc., Portland, OR (booknews.com)