Frequently Asked Questions

What is a clear stool?

A clear stool can have a slight tint of yellow or brown. It will be completely transparent and will not contain any solid matter.

I am not having bowel movements, what should I do?

Bowel movements can take up to 5-6 hours after beginning the prep to start. Be patient, continue to drink extra liquids. If you have not had a bowel movement by midnight the night prior to your procedure, please call the on-call GI physician at 605-342-3280 for further instructions.

The prep is making me nauseous, what should I do?

If you develop nausea or vomiting, slow down the rate at which you drink the solution. Please attempt to drink all of the laxative solution even if it takes you longer. If vomiting persists or you are not able to finish the preparation, stop the preparation and call the GI physician’s office at 605-342-3280 for further instructions.

What are some high fiber foods I should avoid?

Fruits and vegetables are typically high in fiber, as well as nuts, seeds, whole grain breads, beans, and lentils. For a more detailed list, please see our low residue/low fiber diet.

What are some good options for low fiber foods?

Choose white bread and white rice for lower fiber options, as well as pastas made with white flour. Chicken, fish, dairy and eggs are also low in fiber and good choices for foods 2-3 days before you begin your prep. For a more detailed list, please see our low residue/low fiber diet.

If I eat popcorn or seeds 3 days before my procedure do I need to reschedule?

You will not need to reschedule your procedure, however you may need to take additional laxatives and fluids. The seeds or nuts may cause a difficulty in screening and require a need for rescreening if unable to pass completely. If you have eaten seeds or nuts, please contact the GI physician’s office at 605-342-3280 for further instructions.

Can I drink alcohol on the liquid diet?

Alcohol is not allowed as part of the liquid diet.

Can I continue to be on the liquid diet after I begin consuming the laxatives?

Yes, you may continue the liquid diet until you are directed to discontinue anything by mouth, which is typically 4-6 hours prior to the procedure.

Why do I have to wake up so early for the second dose, can’t I take it all the night before?

A split prep has proven to be the most effective for a successful colonoscopy. It is essential you follow the directions we have provided with your prep.

If I weigh under 100 pounds, do I need to take all of the prep?

The liquid amount is not weight dependent. It is important to finish the prep for a successful colonoscopy.