TY - CHAP M1 - Book, Section TI - Acute Headache A1 - Nadler, Paul L. A1 - Gonzales, Ralph A2 - Papadakis, Maxine A. A2 - McPhee, Stephen J. A2 - Rabow, Michael W. A2 - McQuaid, Kenneth R. PY - 2022 T2 - Current Medical Diagnosis & Treatment 2022 AB - ESSENTIAL INQUIRIESAge > 40 years.Rapid onset and severe intensity (ie, “thunderclap” headache), trauma, onset during exertion.Fever, vision changes, neck stiffness.HIV infection.Current or past history of hypertension.Neurologic findings (mental status changes, motor or sensory deficits, loss of consciousness). SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/03/28 UR - accessmedicine.mhmedical.com/content.aspx?aid=1184156064 ER -