All I can say is there are people out there to help people in their time of need. If you want all your scenarios answered then take a class on CPR and first aid. Basically if 911 is called and the patient is unconscious and not breathing or has no heart beat you start CPR and AED. You leave the DNR's and the living wills up to the ER Dr and the hospital staff. As far as the 911 dispatcher screening the calls for cardiac arrest, it is in the questions they are trained to ask. If they don't get sufficient answers to those question they err on the side of responding everyone. If your neighborhood has an AED, be thankful people care about each other enough to supply it and train to use it. Be kind to each other, neighbors.
