If you take a blood thinner, such as to treat blood clots or to prevent a heart attack or stroke, ask the doctor who prescribes it for you when to stop taking it. If you take insulin or other medications for diabetes, you may need to change the dose. Ask the doctor who prescribes your diabetes medication what you should do the day before and the morning of your procedure.
Tell your doctor you will be drinking a sugar-free clear liquid diet the day before your procedure. Some people may need other supplies. To see if you need any other supplies, answer the questions below:. Iron supplements can cause color changes in your stool, which can make it harder for your doctor to see your colon clearly. You should follow a low-fiber diet starting 3 days before your colonoscopy. During this time, do not eat:. They will review the instructions in this guide with you and ask you questions about your medical history.
The nurse will also review your medications and tell you which to take the morning of your procedure. Avoid raw fruits and vegetables, whole kernel corn, grains, seeds, and nuts. On the morning of the day before your procedure, mix all grams of the MiraLAX powder with 64 ounces of a room temperature clear liquid until the MiraLAX powder dissolves.
Once the MiraLAX is dissolved, you can put the mixture in the refrigerator. You will need to follow a clear liquid diet the day before your procedure. Examples of clear liquids are listed in the table in this section. A staff member will call you after noon the day before your procedure. The staff member will tell you what time you should arrive for your procedure.
Step 1: At pm on the day before your procedure, take 2 bisacodyl 5mg tablets by mouth with a glass of water. Step 3 If you were told to arrive for your procedure before am :. If you were told to arrive for your procedure before am , follow these instructions the night before your procedure:. At pm , take 2 bisacodyl tablets by mouth with a glass of water. Then, start drinking the second half of the MiraLAX mixture.
Step 3 If you were told to arrive for your procedure at am or later :. If you were told to arrive for your procedure at am or later, follow these instructions the morning of your procedure:.
At am , take 2 bisacodyl tablets by mouth with a glass of water. Once you arrive, you will be asked to state and spell your name and date of birth many times. This is for your safety.
People with the same or similar names may be having procedures on the same day. Keep from freezing. There is a problem with information submitted for this request. Sign up for free, and stay up-to-date on research advancements, health tips and current health topics, like COVID, plus expert advice on managing your health. Error Email field is required.
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Our Housecall e-newsletter will keep you up-to-date on the latest health information. All rights reserved. Information is for End User's use only and may not be sold, redistributed or otherwise used for commercial purposes. Mayo Clinic does not endorse companies or products. Maintain strict compliance with intake of Miralax as ordered, with regards to dosage and frequency, to derive the benefit of the laxative.
Do not overdose on Miralax, to increase the ease of having a bowel movement. Do not change the dose on Miralax without consulting your doctor. Watch out for any signs and symptoms of worsening of constipation, any intense acute abdominal pain, and any rectal bleed to report to your doctor immediately, so that, a change in plan could be considered.
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