I used to work for Rex PRN on their mother/baby unit and I really really liked working for them. As far as shadowing goes, they cannot and will not ask you to do anything to or for the patients. While shadowing, that's only what you are doing, you are only observing the environment. You are there to see how the staff works together, how the RNs communicate with the MDs, how the charting is, how the scheduling is, and just get a feel for the culture. You should know after shadowing if working there is something that you want to do or not. Managers offer a shadowing experience oftentimes so that you don't have any false expectations of how things are. Also, they get feedback from the staff on how your personality was. It's really a great idea if you are unsure or on the fence about whether or not you want to accept a position. It is by NO means a performance evaluation or anything like that. You are just a follower while you are shadowing. It's a chance for you to ask ?s of the staff and see how they honestly feel about working there without the manager being there. I would HIGHLY recommend it! Best of luck. I think that Rex is probably the best hospital in the triangle to work for. I've worked at Rex, Duke, and now UNC.