It seems to me that when you are training for the OR you will be refreshing at the same time. Anyone who has worked emerg. should be able to pick up fairly quickly!!! The OR is such a different area of work. You have to learn a lot of instrumentation, how to set rooms up, pt positioning and safety. surgeons preferences etc. The circulating part of the job includes checking in the pt. and assessing them while you do it but that is basic nursing which you have done a lot of!! I have worked with nurses who came straight to the OR after graduating and they did fine. If you really want to do it go for it.