Book excerpt: In this issue of Emergency Medicine Clinics, guest editors Drs. Christopher P. Holstege and Joshua D. King bring their considerable expertise to the topic of Toxicology Emergencies. The field of medical toxicology has grown dramatically over the past decade, with the emergence of new pharmaceuticals, abused substances, chemicals within the workplace, and agents of terrorism. In this issue, top experts in the field address some of the more common, controversial, or emerging areas in this challenging area. - Contains 15 relevant, practice-oriented topics including the approach to the patient with an unknown overdose; emerging agents of substance abuse and misuse; differentiating the causes of metabolic acidosis in the poisoned patient; pediatric toxicology; and more. - Provides in-depth clinical reviews on toxicology emergencies, offering actionable insights for clinical practice. - Presents the latest information on this timely, focused topic under the leadership of experienced editors in the field. Authors synthesize and distill the latest research and practice guidelines to create clinically significant, topic-based reviews.