A few years back I was leaving Perth. An inbound flight checked in and Approach asked about their status so obviously some info had been passed ahead. They replied they had a passenger with a history of heart problems who was having breathing difficulties and an EMT on board said she needed to go to a hospital. They requested direct to the IAF and approach said they were number three for the airport and to maintain their routing. They replied with pan pan and were cleared direct to the IAF. I just shook my head.