Student Nurse in the GI Lab

Hi,
I am a student nurse and I have been assigned to work with a nurse preceptor in the GI Lab. I start on Monday and would like to make preparations before I start. I would love to hear about everything the GI nurse is responsible for before, during, and after the procedures, and any tips you might have to help me prepare for the big day. Any and all advice is welcomed and appreciated! Thanks so much!!!
GJ