We learned from a fellow boon docker when we first began that if you are having a serious medical issue and can't call for help yourself, then you need to lean on your horn, set your 4 way flashers on and hope your nearest neighbor understands what it all means. If you understand the signal, you will attend ASAP to see what assistance you can be. If an ambulance needs to be called, get it done even if it means driving the where a cell signal exists then wait for the ambulance to arrive and let them follow you to where the patient will be. I would follow the same protocol if I were in a campground.
