This book answers key questions asked by emergency clinicians faced with complex gastrointestinal and abdominal pain presentations.  Instead of a traditional format that includes epidemiology, pathophysiology, diagnosis, and treatment options, this book takes an approach that mirrors the way clinicians interact with patients   by asking and answering specific clinical care questions. The book is organized into sections by presentation   gastrointestinal bleeding, for example   each of which contains chapters on specific questions, such as  What is the best clinical risk score for low risk GIB patients   Each clinical question comes with a detailed, evidence-based response and a summary that gives best practices, recommendations, and references. Additionally, at the end of each section is a chapter titled  Expert Corner,  which asks the same clinical questions to a surgical or gastrointestinal specialist and includes key pearls these experts have for emergency medicine practitioners.