Physician Response Unit – We have this in East London where an advanced A&E Doctor goes out with an advanced paramenace in one of the HEMS cars. They are there as a sort of “nomad GP” if you like. But with lots of other skills and toys to bring to the ‘party’. Amongst them is the “auto-pulse” which is an automatic CPR machine. So, having these guys turn up at a cardiac arrest can significantly improve outcomes.