When you get an EMT cert you are going to spend more time on liability risk and prevention then anything else, i would say it was a 1/3 or more of my training. Even though a low A/O gives you implied consent it does not mean you can do anything you want. If someone needs a NPA they are already in harms way and doing one puts liability on you and doing one without documented training just increases your liability. When hospital bills go up people will sue anyone to help pay for the costs. Even if you are sued unsuccessfully, that is still tens of thousands out of your pocket on lawyer and court fees.

If you are ever in a situation please keep one thing in the back of your mind; The path to hell is paved with good intentions.