RT Book, Section A1 Mathew, Paul G. A1 Sheikh, Huma A2 Bajwa, Zahid H. A2 Wootton, R. Joshua A2 Warfield, Carol A. SR Print(0) ID 1131932332 T1 Approach to the Patient with Headache T2 Principles and Practice of Pain Medicine, 3e YR 2016 FD 2016 PB McGraw-Hill Education PP New York, NY SN 9780071766838 LK accessanesthesiology.mhmedical.com/content.aspx?aid=1131932332 RD 2024/10/03 AB Among the complaints from patients presenting to outpatient practices, headache is one of the most common. Even the most experienced providers often have a difficult time formulating a diagnosis and effective treatment plan. The authors of this chapter evaluate some of the imperative concepts of headache diagnosis, including headache-specific history, physical examination, warning signs of secondary headache disorders, and when to contemplate further diagnostic studies. The criteria used in making a specific diagnosis are located in the International Headache Society's International Classification of Headache Disorders, second edition (ICHD-2).1