Both the day and night shift on ICU are challanging. On the day shift you learn how to care for pts. after procedures and learn who the DRs. are and what they like .TheDRs. also get to know you which is just as important. You also have the help of other departments if needed. You also have to deal more with the families. On night shift you are expected to know what to do without much supervision and without much backup. You also need to know what truely is a emergancy at 4 in the morning before you call the Dr. There is less staff and the notion that pts. sleep at night is a figment of peoples imagination.Both are busy .Both are challanging. I can't think of a more wonderful, stressful or fulfilling unit to work. One work of advice. REAL NURSES DO CRY.