Notice: Users may be experiencing issues with displaying some pages on stanfordhealthcare.org. We are working closely with our technical teams to resolve the issue as quickly as possible. Thank you for your patience.
48-hour 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. This test involves placing a pH capsule approximately the size of a gelcap to the esophageal wall with the use of an endoscope. The procedure to place the capsule through an upper endoscopy is done under conscious sedation. Therefore, you will need someone to drive you home after your procedure. The test will be cancelled if you do not have someone that will drive you home. For the duration of the test, you will keep a diary of any symptoms you experience and record exact times for when you eat and when you are lying down.
The capsule naturally falls off the wall of the esophagus and passes through your digestive tract and eliminated from the body. Please wear comfortable two-piece clothing. You must return to Endoscopy 2 days after the procedure to return the recorder.
The Stanford Medicine Online Second Opinion program offers you easy access to our world-class doctors. It’s all done remotely and you don’t have to visit our hospital or one of our clinics for this service. You don’t even need to leave home!