A 75-year-old man with advanced Parkinson’s disease presents to the ED with fever, worsening rigidity, and confusion. He has had swallowing difficulties for the past 48 hours.

1. What is the most concerning diagnosis? 1 mark

β˜… β˜… β˜… β˜… β˜…

2. Give (3) common precipitants of this condition 3 marks

β˜… β˜… β˜… β˜… β˜…

3. List (3) important investigations you would perform in this patient with justification. 3 marks

β˜… β˜… β˜… β˜… β˜…

4. Outline (5) key principles in the management of this patient. 5 marks

β˜… β˜… β˜… β˜… β˜