Ok, lots of idiots here. I am a former EMT. My experience is in Pennslyvania, so YMMV...
1. Prioritization. ER's and EMT's prioritize - in case of urgency. someone with a hangnail / broken finger get lower priorities than a person with a lacerated liver or heart attack.
2. Ambulances - they will always pick you up. no matter what. No need for pre-authorization of insurance.
What America may have is a BILLING issue. Who pays for what? Should it be considered to be a "Right" as defined in the Bill of rights? Should I expected to pay for my neighbor being overweight? Why can't he be responsible for himself? How exactly does government-run health-care plans keep costs down, or do they hide the costs in the national debt?
I now want to say, I do want a national health plan, and I do believe in a single payer plan, but I do expect my taxes to go up. My biggest problem with the plan was the people claiming that things were not going to change.