The aim of this comprehensive textbook is to provide PA students and practicing PAs with a reference and guide that is specifically designed for their level and degree of practice. The content covers a broad scope of disease processes but focuses on the organ systems and the surgical conditions of these systems. Presented here are core principles of anesthesia, pre- and post-operative medical care, and critical care, with in-depth discussion of diseases of the GI tract, trauma, vascular emergencies, pediatric and orthopedic surgery, surgical sub-specialties, and much more. Each topic is presented in a clear and straightforward fashion that reads easily and provides students and PA practitioners with a quick way to learn or refresh on important topics and gain understanding of what’s important in the field of surgery. Particular attention is given to the medical management of the surgical patient.