A 55-year-old man has presented with acute ankle pain and a low grade fever. A clinical photo is shown below :

Ankle pain and fever

1. State (3) clinical features demonstrated in the photograph. (3 marks) 3 marks

2. List (5) differential diagnoses for his presentation. For each diagnosis, list a definitive investigation finding that would confirm its presence. (5 marks) 5 marks

A joint aspirate is performed: Appearance: cloudy yellow WCC 40 000 % PMNs 70% Gram stain negative Crystals negatively birefringent

3. State the diagnosis. (1 mark) 1 mark

4. List (3) medications, with doses, that could be used to manage this problem. Provide a relative contra-indication for each. (3 mark) 3 marks