A 32-year-old male presents with atraumatic unilateral knee pain and swelling.

1. What organisms would be likely to cause septic arthritis in this patient? 3 marks

2. List (3) contraindications for joint aspiration in the ED. 3 marks

Unfortunately, your registrar sustains a needle stick injury after aspirating the joint.

3. Outline your (6) management priorities. 6 marks