The patient is a 24-year-old female administrative assistant who comes to the emergency department with a chief complaint of severe right-sided headache. She states that this is the sixth time in the last 2 months she has had this headache. She says the headaches last 2–3 days and have impacted her ability to concentrate at work. She complains of nausea and has vomited three times in the last 3 hours. She states, “the light hurts my eyes.” She rates her pain as a 10/10 at this time. Ibuprofen and acetaminophen ease her symptoms somewhat but do not totally relieve them. No other current complaints.