PREP D -Day before exam 
Breakfast, lunch - All the clear liquids you desire. The more the better. 
1:00pm; 3:00pm; 7:00pm; 9:00pm; and Midnight-Drink one glass (8oz) water or clear liquid. 
5:00pm- Dinner-clear liquids (any amount) 
After dinner - Take the given laxative drug with 1 glass of water. 
* Clear liquids are: water, carbonated beverages, jello(no fruit), clear soups(bouillon or broth), Popsicle, coffee or tea (without cream), Kool-aid, grape juice, apple or cranberry juice, hard candy, honey, sugar or sugar substitute.  AVOID: Milk, alcohol, any fruit juice that is not clear (orange or tomato).  All solid foods.
Day of exam 
7:00am- Drink 1 1/2 glasses of water (12oz). 
NOTHING ELSE TO EAT, DRINK, SMOKE OR CHEW - DO NOT take any medications until after the examination is finished except for critical medications.**
No tobacco or chewing gum.
Special Instructions 
If you have Diabetes and take insulin, on the morning of your exam you should not take any regular insulin and take 1/2 your usual Lente or NPH. 
**Critical medications such as for your heart, blood pressure, breathing or seizures medications should be taken with only a small amount of water on the morning of the procedure unless instructed to do otherwise by your doctor.  Please inform the Radiologist if you have taken any critical medication the day of the test.