Patency Capsule Endoscopy Preparation Instructions

About Patency Capsule:

A patency capsule is a dissolvable capsule that is ingested to verify the patency of your gastrointestinal tract. This is especially important to do prior to receiving a capsule endoscopy, If your provider suspects strictures/narrowing in the small bowel.

Check in Details:

☐ Please check in between: 7:45 – 8:00 AM
If you arrive later than 8:00 am, we will NOT be able to proceed with the Patency Capsule Endoscopy.

What to bring and do prior to your procedure:

☐ You should plan on being at our facility for at least 10 minutes.
☐ Read prep instructions THOROUGHLY.

Weight Loss/Diabetes Medications:

  • GLP-1 Agonists: including Mounjaro (tirzepatide), Zepbound (tirzepatide), Trulicity (dulaglutide), Victoza, Saxenda (liraglutide), Adlyxin (lixisenatide), Ozempic, Wegovy (semaglutide subcutaneous), Bydureon BCise (exenatide extended-release), Byetta (exenatide), Rybelsus (semaglutide tablet), Stop the oral or injectable medication one week prior to your test.

If you have diabetes, follow these instructions:

  • Long-Acting Insulins (ex. Lantus, Basaglar, Semglee, Toujeo, Insulin Glargine): Do not take any long-acting basal insulins the day before or the day of your procedure.
  • Rapid-Acting and Regular Short-Acting Insulin (ex. Lispro, Humalog, Admelog, Regular Insulin): If your blood sugar is high and you need to take a correction, take ½ or 50% of your usual correction. This applies to the day before and the day of your procedure.
  • Insulin Pump: Decrease basal rate by ½ the day before and the day of your procedure. Do not administer bolus doses.
  • Other Diabetic Oral & Injectable Medications (ex. Metformin, Glipizide, Sulfonylureas, Tradjenta, Dipeptidyl Peptidase IV (DPP IV) Inhibitors, Januvia, Janumet, Sodium-Glucose Cotransporter-2 (SGLT2) Inhibitors): Do not take the day before or the day of your procedure.
  • Check your blood sugar at same intervals as usual, and additionally, if needed: If your blood sugar is less than 60, please take glucose tablets at any time before your procedure with a sip of water.

Procedure Cancellation Notice Requirements:

  • Procedure cancellations must be made three (3) business days prior to your appointment.
  • Failure to provide the required advance notice will result in a $50 Total Cancellation Fee.

Checklist to Ensure Proper Preparation

​To ensure the proper completion of your procedure, we strongly suggest that you PRINT OUT this document and check off each of the instructions as you complete them.

5 days before your exam:

☐ Please contact our office at 303-604-5000 if you have problems with constipation.
We will inform you of any special requirements we may have you do.

​1 Day before your exam:

☐ You may have a regular breakfast in the morning, but after 9 am, begin a clear liquid diet.
☐ If you have diabetes, please see Diabetes instructions above.
☐ You can have clear liquids up until 10 pm – NO solid foods.
AFTER 10 pm, please take NOTHING by mouth, not even medication.
Do NOT smoke or chew tobacco 24 hours prior to your exam, it may cause issues with your procedure.
☐ The charts below will show you clear liquid diet examples of what you can and cannot drink:


  • Gatorade, Pedialyte, Powerade, Kool-Aid
  • Gatorade G2, Propel, Crystal Light
  • Popsicles
  • Jell-o, Juice without Pulp (ex. Apple Juice)
  • Black Coffee
  • Tea, Water
  • Clear Sodas (ex. Sprite, Ginger Ale)
  • Sparkling water


  • NO red or purple liquids
  • NO Milk or non-dairy creamers
  • NO Alcohol
  • NO Broth or soup
  • NO Juice with Pulp (ex. pineapple juice)
  • NO Liquid you cannot see through
  • NO Apple Sauce
  • NO Smoothies

The day of your exam:

No medication should be taken before 10 am the day of your exam. You CAN resume medications 2 hours after ingesting the capsule.
☐ Do NOT arrive to your exam later than 8:00 am. We will not be able to proceed if you do.
☐ At the office, you will ingest the patency capsule. You will receive an x-ray order to obtain an
abdominal x-ray 24 hours after you swallow the patency capsule. Depending on these
results, your provider will decide if we can proceed with a capsule endoscopy.
You may have clear liquids 2 hours after swallowing the capsule.
You may have a light meal 6 hours after swallowing the capsule.

Instructions/expectations following the exam:

☐ After ingesting the capsule and until it is excreted, you should not be near any electromagnetic fields,
such as an MRI device or amateur (ham) radio.
Do not be concerned if you do not excrete the capsule, sometimes this does happen.
☐ Depending on the x-ray results, we will contact you to discuss the steps to how we will proceed.
If you do not hear back from us in 48 hours from when the x-ray was done, please contact
our office: 303-604-5000.

Download Prep Instructions

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