The OR is most definitely a more structured environment then a MS floor. The autonomy is less since you are part of a team to get the surgery done. Each member has their role, but each part is essential. We start our day getting the room ready for our first surgery by laying all the supplies, instruments, medications, etc out in the room. Just basically preparting what we need. Once the patient is in the room you want to leave the room as little as possible. Surgeons are a different breed and you have to be able to do what needs to get done and shyness or being timid is not a trait that will last long in the OR. Not all the doctors are jerks, but some are. Once you are part of a team they all know you and it can be fun. You have to like to work with equipment because you will need to know how to trouble shoot in certain situations. For example, during laparoscopic surgery you have to move towers of video equipment, plug in cords, take pictures, print pictures, etc. You have to not mind that your patient is aleep most of the time in the room. Some nurses don't like that they don't have interaction with their patients. The patients are awake for a short time before anesthesia and it is a very important time for comforting them. You have to be able to lift heavy trays of instruments, be able to bend down and crawl on the floor to move (surprize!) more equiment like foot pedals, passing cords, etc. If you like that there is a beginning, a middle and an end, then that's the OR. It's definitely a different environment and work pace then the floor or unit. Either you like it or you don't.