Preparing for GI Motility Testing

Most GI motility tests require different methods of preparation. This guide helps you understand what to expect for some standard procedures, including study length, pretest diet and other protocols. Your doctor will give you specific instructions before your test that you should follow carefully.

  • Study time: 30 to 60 minutes.
  • Pretest diet: No food or drink three hours before testing.
  • Clear the way: Give yourself a saline enema two hours before the test.
  • Study time: Six hours.
  • Pretest diet: Do not eat or drink anything after midnight.
  • In the morning: Do not use gum, mints or cigarettes.
  • Things to pack: Bring a sandwich to eat during your test—any kind you want.
  • Study time: Up to three hours.
  • When to schedule: At least 30 days after colonoscopy study.
  • Pretest diet: One day before the test, you will start your pretest diet, eating only the foods below and nothing after midnight:
    • Eggs with seasoning (no butter)
    • Chicken, fish, beef or pork with seasoning
    • White rice
    • Any kind of potato
    • Water
    • Coffee with NO dairy
  • In the morning: Brush your teeth. Feel free to use mint-flavored toothpaste or mouthwash.
  • Medications: You may take scheduled medicines at least two hours before the study with small sips of water. However, if possible, take the medication after the study is over.
  • Study time: Six hours.
  • Actions: Obtain a prescription for colonic motility preparation from your physician and take as directed.
  • Pretest diet: Do not eat or drink after midnight before your study date.
  • Over-the-counter medications: Seven days before your colonoscopy, discontinue iron, aspirin and blood thinners.
  • Prescription medications: You may take blood pressure or heart medications at least two hours before the study with small sips of water. If you have diabetes, consult with your physician. 
  • Things to pack: Bring a sandwich to eat during the test—any kind you want.
  • Study time: One hour.
  • Pretest diet: Do not eat or drink anything after midnight.
  • In the morning: Do not chew gum, mints or smoke cigarettes.
  • Study time: 24 hours.
  • Pretest diet: Do not eat or drink anything after midnight. Do not chew gum.
  • Heartburn or GERD medication: Discontinue any acid-suppressing medication five days before your appointment, unless your physician instructs otherwise.
  • Follow up: Please make arrangements to return to have the catheter removed the following day.
  • Study time: 48 or 96 hours.
  • Pretest diet: Do not eat or drink anything after midnight.
  • In the morning: Do not use gum, mints or cigarettes.
  • Heartburn or GERD medication: Discontinue any acid-suppressing drug five days before your study, unless your doctor instructs otherwise.
  • Follow up: Please make arrangements to bring the pH monitor back.
  • Study time: Up to 7 days.
  • Prior authorization: Speak with your provider's office to obtain prior approval from your insurance before calling to schedule this study.
  • Instructions: We will provide guidance when you schedule your appointment.

Have Questions or Need Help?

To make an appointment or refer a patient, call us or send a message to the GI Motility team. You can also have us call you back at your convenience.

Monday–Friday, 8 a.m.-5 p.m., Pacific Time (U.S.)
Available 24 hours a day

(1-800-233-2771)