Do u get D after having a colonoscopy? Im spose to be having one next wednesday. I have an exam at uni on the tuesday and the friday of the same week. I was wondering if i wood still be ok to study or do i need time to rest? If so should i consider doing the exams at a later date? The tuesday exam has me worried b/c i understand you are spose to fast 3 days b4 the colonoscopy, and having to study and do an exam whilst fasting would be tiring and stressful right? Surely i woodnt get the same mark as i would havn eaten. does anyone have any ideas what i should do? thanxps. what are you spose to wear when having a colonoscopy? do they put u in a gown?