Researchers have measured the nuchal folds of thousands of babies between 11 and 14 weeks of pregnancy. Because a babyâs nuchal fold will normally get a bit thicker with each day of gestation, theyâve been able to establish what an average thickness is for each day during those three weeks.
The Day of the Procedure. You should not eat any food on the day of the procedure, and you shouldn't eat or drink anything between two or three hours before your colonoscopy. Once the procedure is finished, your doctor will give you instructions about resuming your normal diet.
Day of your Colonoscopy.  Do not eat any solid food until after the colonoscopy.  Take the second part of bowel prep as instructed, starting 4 hours before and. finishing at least 2 hours before your colonoscopy appointment.  After you complete the prep do not take any other liquid or food.