RT Book, Section A1 Go, Steven A2 Cydulka, Rita K. A2 Fitch, Michael T. A2 Joing, Scott A. A2 Wang, Vincent J. A2 Cline, David M. A2 Ma, O. John SR Print(0) ID 1143143749 T1 Headache T2 Tintinalli's Emergency Medicine Manual, 8e YR 2017 FD 2017 PB McGraw-Hill Education PP New York, NY SN 9780071837026 LK accessemergencymedicine.mhmedical.com/content.aspx?aid=1143143749 RD 2023/05/30 AB Headache is a common complaint for patients presenting to an emergency department (ED). The majority of headaches have benign causes (96%), although evaluating patients for potential high-risk features may be useful when screening for headaches associated with significant morbidity or mortality (see Table 140-1).