Headache and Migraine

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This report reflects the changing nature of guidelines toward evidence-based treatment rather than expert opinion. A companion piece will help translate evidence-based guidelines to clinical practice.

Subarachnoid hemorrhage CT scan of head

A sudden severe headache with emesis brings a 35-year-old man to the ED. Research on his smart phone has satisfied him that this is a post-coital event and therefore, harmless. He refuses a lumbar puncture.