"While on the phone with the dispatcher, calmly give your location as best you can, a brief summary of what is going on, and any pertinent medical information. I drive ambulances in rural Pennsylvania and have missed houses or driven out of the way because of an incorrect address. Pertinent medical information is key. It can often be the difference between 'chest pain' and a possible heart attack. Possible heart attack, however, will get us there ASAP."