This reference presents essential background to understand problems in emergency medicine. Provides expert decision-making assistance, with evidence where available, and a user-friendly format that delivers high-yield guidance. Basic science coverage is just detailed enough to understand every problem quickly, without being overwhelmed. Clinical recommendations are founded upon sound evidentiary guidelines, wherever available, to assist in implementing evidence-based practices. More than 500 full-color clinical photographs illustrate emergent conditions as they present in real life.