RT Book, Section A1 Jones, Thomas Russell A2 Stone, C. Keith A2 Humphries, Roger L. SR Print(0) ID 1176283237 T1 Approach to the Emergency Department Patient T2 CURRENT Diagnosis & Treatment: Emergency Medicine, 8e YR 2017 FD 2017 PB McGraw-Hill Education PP New York, NY SN 9780071840613 LK accessmedicine.mhmedical.com/content.aspx?aid=1176283237 RD 2024/03/28 AB An emergency is commonly defined as any condition perceived by the prudent layperson—or someone on his or her behalf—as requiring immediate medical or surgical evaluation and treatment. On the basis of this definition, the American College of Emergency Physicians states that the practice of emergency medicine has the primary mission of evaluating, managing, and providing treatment to these patients with unexpected injury and illness.