Patients present to the emergency department with symptoms, no diagnoses. With this in mind the unique 'signs and symptoms' approach of this new book offers the quickest possible way to diagnose critical conditions in an emergency situation. This pocket-sized manual will be in an outline format and practically oriented so that it can be used as a quick reference guide by students doing clerkships in emergency medicine as well as emergency medicine residents. Since this manual will be organized around presenting symptoms, it can be used in real-time to answer patient care questions. Diagnoses will be listed in order of their severity in each chapter with the symptoms, signs, suggested workup, and patient disposition given for each diagnosis. Features: * Symptom-based for quicker diagnosis * Outline format for real-time reference * Focuses on the 200 conditions which should be considered in the emergency room - Teaches students to consider critical diagnoses, and therefore gets them thinking in an emergency mindset