Stay & play is all well and good if your patient is stable and you have the luxury of a Doctor and/or Paramedics. I work as a double EMT crew and on those naughty jobs you don't want to hang around on scene for too long, 9 times out of 10 you can spot the naughty ones as soon as you walk into the room, so while your crew mate is getting the gear to load and go you can get those first set of obs and then put the lead boot on and get them into hospital. Unlike Tom, we don't always have the luxury of an A&E department close by, and I have had more than one very long drive to the hospital with a poorly patient in the back, sometimes we have a para available to back us up, but sometimes its not feasible, for instance it might take us just the same amount of time to get them to A&E than for the para to attend. I think you just have to take it as it comes, a cop out really, but what else can you do?