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A 65-year-old woman presents with atraumatic loss of vision in one eye and headache.

1. Apart from giant cell arteritis (anterior ischaemic optic neuropathy), complete the following table regarding (4) possible diagnoses and relevant fundoscopic findings for each. 4 marks

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You suspect she has giant cell arteritis.

2. List (5) features on history and (5) features on examination that would support this diagnosis. 5 marks

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3. With giant cell arteritis as the most likely diagnosis, name the initial drug therapy (including dose and route) that you will prescribe for this patient, and list (2) early complications of this therapy. 3 marks

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