With this 6th edition, the leading text in the field continues to reflect the evolving scope of the state-of-the-art practice of Emergency Medicine while retaining its style of brief, clinically focused chapters offering specific advice in diagnosis and management. Features new to this edition are: expanded coverage of bioterrorism and weapons of mass destruction; new section on Emergency Medicine in Unique Environments; new chapter on Pharmacology of Antimicrobials, Antifungals, and Antivirals; new chapter on Principles of Drug Interactions; new chapter on Abdominal and Pelvic Pain in the Non-Pregnant Patient; new chapter on Patient Safety Issues; expanded coverage on role of diagnostic imaging in the ED; and emphasis on evidence-based clinical practice.