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Colonoscopy 1-day Split Prep

Your colonoscopy

What you will need for your PREP:

  • Prescription for Nulytely/Dulcolax
  • Clear liquids
    • Water
    • Tea/coffee (NO cream or milk)
    • Gatorade/Powerade
    • Lemon lime soda
    • Broth (chicken, beef, or vegetable)
    • Jell-O
    • Popsicles
    • Clear juices (apple juice, white grape juice or white cranberry juice)

"If you can see through it… you can drink it"

NO Pink, Red, Purple or Blue Liquids!
The morning of your procedure
  • Nothing to eat or drink (including: solid foods, liquids, alcohol, ice, gum, or candy)
  • MEDICATIONS - At 6 AM please take inhaler, blood pressure, seizure, and heart medications with a sip of water
  • DO NOT TAKE diuretics or insulin

2 days before procedure:

Low residue diet
(Foods to AVOID – raw fruit and vegetables, salads, cereals, brans, grains, seeds, nuts, fiber/Metamucil)
9 PM – Take 2 Dulcolax tabs (with a glass of water)



1 Day before procedure:

Mix Nulytely PREP - with prescribed amount of water and place it in the refrigerator (if you prefer)
Clear liquid diet - Starting at breakfast (water, tea, coffee, Gatorade, lemon lime soda, broth, Jell-O, popsicle, apple juice, white grape juice, or white cranberry juice)

4-6 PM – Start drinking Nulytely PREP (8 oz glass every 10 minutes)

Drink half of the Nulytely mixture (2 Liters) 8oz glass every 10 min

If you are full, bloated or nauseated stop for 20 minutes, then continue

2-4 AM – Wake up to finish drinking Nulytely PREP
4 AM – NOTHING TO EAT OR DRINK until after your procedure
Please arrive 15 minutes before your scheduled time.

Patients on blood thinners

Blood thinners should be held as prescribed by your doctor.

Talk to your prescribing doctor before stopping or holding any blood thinner.
(Including: Aspirin, Warfarin/Coumadin, Aggrenox, Lovenox, Heparin, Plavix, ticlid, Xarelto, Apixaban, Effient, Argatroban, Pradaxa, Cilastazol)

One of your nurses will be contacting you regarding your blood thinners at least two weeks prior.


NO recreational crugs
10 days prior

NO iron supplements
5 days prior

NO weight loss meds
2 weeks prior

Please bring with you the day of your procedure:

  • Photo ID
  • Insurance cards
  • Medications
  • Someone to drive you home and stay with you for 6-24 hours
    (NO cabs, taxis, or Share-A-Fare alone)

Please report to:

University Health Truman Medical Center
GI Lab – 3rd Floor
2301 Holmes, Kansas City, MO 64108

University Health Lakewood Medical Center
GI Center – 1st Floor
7900 Lee’s Summit Road, Kansas City, MO 64139