I am not a nurse (yet) I start nursing school next month. But, I wanted to comment on this post. I have been a 911 dispatcher for 11 years and my schedule is aweful. I work two 12 hour day shifts then off two days and then two 12 hour night shifts and off two days, we rotate constantly. Plus on my two days off I usually work overtime or timetrades for people. In the past there has been times where I have worked four 12 hour night shifts and then went into three 12 hour days shifts, it is very exhausting to flip flop between nights and days.
So needless to say that if you are not used to flip flopping days and nights you can get really burned out. Good luck and I hope you make it through your shifts without being too tired.