I have been a bedside nurse for 20 years. I am currently on a leave of abscence from my full time job, to take care of some personal family issues. However, I would like to pick up some prn work to help with finances. I have been offered a position as a substitute school nurse on a prn basis. My concern is that I have never done this kind of nursing, and doubt I will get much if any orientation. I would appreciate your thoughts and advise.