A 40-year-old man presents at 11:30 pm with severe pain and distress with an erection present for 3 hours. He has no significant past medical history.

1. Complete the table listing four points differentiating low-flow and high-flow priapism. 4 marks

2. List three medications from different drug classes which can cause priapism. 3 marks

3. Why is low-flow priapism considered a urologic emergency? 1 mark

4. Outline a step-wise approach to ED management. 4 marks