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A 32-year-old woman presents with a 3-day history of headache. She reports intermittent loss of vision and bright zig-zag lines in her visual field preceding the headache.

1. State 3 diagnostic characteristics of migraine with aura. 3 marks

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2. List 5 differential diagnoses for headache associated with visual disturbance other than migraine with aura. 5 marks

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3. Outline an escalating pharmacological approach to treatment of severe migraine in the ED, including doses where appropriate. 4 marks

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