Flexible Sigmoidoscopy Prep Instructions
Have DIABETES? Read this first!
Flexible Sigmoidoscopy Prep
IMPORTANT GLP-1 DRUG INFO
The following weight loss / diabetic drugs should be held as instructed prior to procedure:
- Liraglutide: Victoza (weekly) and Saxenda (daily)
- Dulaglutide: Trulicity (weekly)
- Exenatide: Bydureon (weekly) and Byetta (daily)
- Semaglutide: Ozempic (weekly), Wegovy (weekly) and Rybelsus (daily)
- Tirzepatide: Mounjaro (weekly) and Zepbound (weekly)
- Lixisenatide: Adlyxin (daily)
The medication will need to be stopped seven (7) days prior to your procedure if you are on a weekly dose or the day of your procedure if you are on a daily dose.
1 Day before your appointment
Unless otherwise instructed by your physician
The day before your procedure you may eat a regular breakfast, lunch, and dinner (if eaten before 6:00 pm).
At 7:00 pm, drink one (1) bottle of Magnesium Citrate. (you do not need a prescription for this)
Clear liquids only from 6:00 pm until midnight if your appointment is in the morning. For afternoon appointments, you may have clear liquids until three (3) hours prior to your arrival time on the day of your procedure.
DO NOT EAT OR DRINK AFTER THIS TIME
Clear liquids include:
- Black Coffee
- Broth
- Iced or Hot Tea
- Gatorade
- Colas
- Crystal Light
- Popsicles
- Apple Juice
- Bouillon
- White Grape Juice
Do not drink any red or purple liquids
DAY OF YOUR PROCEDURE
Use a Fleet® enema two (2) hours before your appointment. Follow instructions on Fleet enema package.
If sedation is required, you MUST bring a driver.
Please call us at (346) 340 4414 if you have any questions or if you are having difficulty with the preparation. We are available 24 hours a day, 7 days a week.
Make An AppointmentDiabetic Prep
Medications
- If you take oral medications for your diabetes, do NOT take your diabetes pills on the day prior to your procedure (prep day) or on the day of your procedure (until your procedure is complete and you resume a normal diet).
- If you take non-insulin injectable medications (Byetta, Bydureon, Victoza, Trulicity, Tanzeum, Symlin), do not take the medication if your injection day is the day prior to your procedure (prep day). You can resume it after the procedure is complete.
- If you take insulin, reduce your dose by 50% (half) of your normal dose on the day prior to your procedure and the day of your procedure. You can resume your normal dose after the procedure when you resume normal diet.
- If you use an insulin pump, contact your diabetes doctor for instruction. Generally, most patients will need to reduce their basal rate to 80% of the normal rate.
Diet
- You should aim for 45-60 grams of carbs with each meal. Although you may ordinarily avoid sugars, they are ok to take when you are prepping for your colonoscopy as these will be the main source of calories when you are on a clear liquid diet.
- For snacks, try to include other fluids that contain electrolytes such as broth.
- Examples of clear liquids with carb amounts are listed below. Note, if you experience low blood sugar (<60) during the 2 hours before your procedure, you can take 3 teaspoons of soda or clear juice to raise your sugar. Do NOT take solid foods or non-clear liquids, as your procedure will be cancelled.
FLUID
AMOUNT
CARBS
Juice
1/2 cup
15 g
Jello
1/2 cup
15 g
Soda
1 can
40 g
Popsicle
1 double stick
15 g
Gatorade/Powerade
1/2 cup
15 g
Broth (veg/chicken/beef)
any
0 g
Clear Protein Drinks
Clear Protein Drinks
0 g