Reflux Studies/ Bravo pH Capsule

Your BRAVO pH Monitoring Test




Bravo pH monitoring is a test to assess whether acid is coming back into the esophagus from the stomach causing pain, nausea, heartburn and chest pain. The esophagus is a muscular tube that connects the throat to the stomach. This test involves the temporary placement of a pH capsule (approximately the size of a gelcap) to the wall of the esophagus.  An endoscope is used to place the capsule; an endoscope is a thin flexible tube with an attached camera. The capsule is a small monitoring device that will measure the frequency and duration of acid coming back up into your esophagus.  These measurements allow your doctor to evaluate your heartburn and acid reflux symptoms and plan the best treatment for you. You will record sleep, eating and symptoms in a diary for your physician to review.  On average, the procedure to place the Bravo capsule takes about 20 to 30 minutes to complete.

Preparing for Your Bravo pH Capsule Placement

You will receive a phone call from an Ohio Valley Endoscopy nurse.  The nurse will obtain a basic health history and will review your pre-exam instructions with you.  It is very important that you speak with an Ohio Valley Endoscopy nurse before the date of your Bravo pH capsule placement.

Before your procedure, you should follow these important safety rules which are critical to your well-being.  If you do not follow these guidelines, your colonoscopy may be delayed or cancelled.

  • Make arrangements for a responsible adult to drive you home and care for you after your procedure.
  • Do not eat or drink anything after midnight the night before your procedure unless you are instructed otherwise.  No food, liquids, water, candy, gums or breath mints are allowed after midnight.
  • Your physician or Ohio Valley Endoscopy nurse will provide specific instructions about taking your medications prior to your procedure.
  • It is OK to brush your teeth or rinse your mouth the day of your procedure.  Do not swallow.


  • If you take insulin or any other routine medication, your physician or an Ohio Valley Endoscopy nurse will tell you how to take your medicine the day of procedure.
  • You should take your blood pressure, breathing or seizure medication the morning of your procedure with a small sip of water.

PLEASE NOTE: Failure to follow these instructions can cause complications.

The Day of Your Bravo pH Capsule Placement

If you are unable to keep your appointment or you are delayed, please contact Ohio Valley immediately at 937-240-1471

  • Make arrangements for a responsible adult to drive you home and care for you after your procedure.
  • Do not wear any jewelry or bring valuables with you on the day of your Bravo capsule placement.
  • Bring your driver’s license/identification card and health insurance cards/forms with you.
  • Depending on your insurance, you may also be asked to bring your copay, coinsurance or deductible.
  • Wear low-heeled shoes and loose, comfortable clothing that are easy to put on, take off and that can be easily folded.
  • Please review the Patient Rights and Responsibilities which are located at the Ohio Valley Reception Desk and on our website at

During your phone call with the Ohio Valley Endoscopy nurse, you will be instructed what time to arrive at Ohio Valley.  Please check in at the front desk when you arrive.  After you register, you will be escorted back to the pre-procedure area to have your vital signs taken.  You will change into a gown provided by Ohio Valley.  You will get medication through an I.V., putting you to sleep to keep you comfortable during your procedure.  On average, this procedure takes 20 to 30 minutes.  Your physician will talk with you before you are given sedation.

After your Bravo pH capsule is placed, you will be moved to a recovery area until you are ready to go home.  You will be offered something to drink- please do not bring food or drink from home.  You may have a sore throat after the endoscopy.

For the next 48 hours, you will be wearing a small monitor that clips to your clothing (which looks like a large pager). You will keep a diary of any symptoms you experience, recording the exact times when you eat and when you are lying down. This will be explained by your nurse and you will receive discharge instructions to take home.

The capsule naturally falls off the wall of the esophagus and passes through your digestive tract and is eliminated from the body. 


  1. The monitor box must be returned to Ohio Valley after the 48-hour testing period. 
  2. It is recommended that you do not have an MRI test for at least 30 days.
  3. Your physician may take small tissue samples for closer examinaton during your procedure. 
  4. Patients who are not candidates for Bravo pH Capsule Placement include:
    • Patients with a pacemaker or defibrillator
    • Patients with a history of bowel obstructions, strictures, Crohn’s, esophageal varices and known esophagitis.
    • Patients who will have an MRI in the next 30 days