Hello everyone! I am a student nurse and I am very interested in ER, Intensive Care, and Critical Care Nursing.. I am not sure of the differences between the 3 and I was hoping you could help me decifer them. I am a very active person and like to be moving at all times.. Also, is it an area in the hospital where the "new" nurses need to work on the med-surg floor and work their way up to those three types of nursing? If anyone can help clear this up better I would appreciate it greatly! Thank you!