I don't know why nurses generally have this fear of talking to doctors. Just talk to them the way that you would talk to any other professional colleague, straight and to the point. Several people have mentioned SBAR, which is a fabulous way to organize your communication, but also remember that you and the doctor both have the same goal in mind which is the good of the patient. Don't call them in the middle of the night for something that can wait and don't wait to call on something that needs immediate attention. Be courteous and they will return the favor, they are people too . . .