If you do not feel ready, then speak up and tell them. You would do yourself a disservice if you came off of orientation too early and knew that you were not ready.. You should ask for a couple more weeks and see how that goes. I wish you luck! Remember, you will not completely be 100% when you are done orientation, you need to get your own flow and feel for things. There is always other nurses and the charge to ask questions and for help. You cant possibly know everything about everything that comes walking through the doors of a busy ED! We are always learning..