Should I Add This on my Resume?

Long Story Short...I was not happy with my orientation as a new nurse on the floor I was working on. I felt the environment was not a positive one for a new nurse. I was left on my own often and had to figure out many things on my own or through various other nurses. There was no structured orientation/precepting and I rarely recieved any feedback.

I let my NM know I was not pleased with my orientation and the reasons for my displeasure. I also told her how stressful it was to not have the support I needed at this time from my co-workers. She told the director who fired me on Thursday. Their reason for termination? Because I was unhappy there and they did not want to keep me on staff. They did not want me "bringing down" the rest of the staff. I did not leave on bad terms. I was quiet and cordial during the whole firing event. It wasn't a bad experience, but my employer felt I was just a miserable mess working there. At least that was my perception.

My question is should I include this previous job on my resume? Or should I leave it off and present myself as an RN who has never worked as an RN a day in her life?