PANCE Exam Practice Questions: Quiz 300 March 9, 2016 By Aamir Khan Leave a Comment A 26-year-old female gives a history of severe throbbing unilateral head pain associated with onset of menses. The headache comes on gradually and builds, lasting for several hours. What is the most probable underlying mechanism? A. activation of trigeminal nerve B. antibodies to acetylcholine C. estrogen surge D. serotonin deficiency Δ
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