BoP,
Homework prior to the trip would be crucial. When we went to Belize I knew where the nearest chamber was and what the chances it would be open were, as well as the choices I had to get there (boat, car, help, plane). Other hospitals in the area.
A PCI(precombat inspection) list if you will. Questions to ask on site, o2, defib, who is the first aide guru etc. And on the back the pretrip gathered information, chamber numbers/frequency, Dan contacts/insurance, emergency transport etc. I personally carry one of the 9-line medevac cards from my deployments. They are laminated and can be written on with a permanent marker (in my log book) so in the heat of the moment you or your representative can get information that is crucial to care.
Once you have this metric you can tailor your dives to an acceptable risk, like some have mentioned above.
This would also be good information for those of us who have the opportunity to dive locally.
---------- Post added March 27th, 2015 at 09:06 PM ----------
Something to add to the back of the card could also be your current day, week, trip dives. Approx depths, mix, time and duration. Something they can tag to you if need be.