You have every right to take offense at this and you are not alone. None of us would refer to the receptionist, CNA or MA as the "doc" so why would we accept someone with little or no education being classified as a nurse. I really think that,when this occurs, it is important that we engage in a side conversation with the person using the term inappropriately.Point out that it is misleading, especially to patients. But rather than be resentful, we do need to speak up. Especially to management. It is only when we value our profession enough to use our voices in a professional and direct manner that we will truly effect change.