Ambulatory Esophageal pH Monitoring
24 Hour Ambulatory pH Monitoring is a test that is done to measure how much acid reflux you have and how often it happens in a 24 hour time period during your normal daily routine.
The esophagus is a muscular tube that contracts rhythmically to move food through it (peristalsis). There are valve muscles at the top and bottom of the esophagus (upper and lower esophageal sphincter) that open to let food/liquids through when you swallow.
The purpose of this sheet is to give you information that you need before you come to the hospital for your test.
Please follow your doctor’s instructions about whether or not you should stop taking certain medications before the test. If your doctor has not given you instructions about your medications, please contact him/her immediately, because this could affect when your test is done and the outcome of the test.
It is important for you to not eat or drink anything after midnight the night before your test until your test is completed. If your test is in the afternoon, you may have a liquid breakfast before 8 a.m., then nothing else.
Please wear a front buttoning shirt or blouse the day of the test.
After you get here, we will ask you some questions about your particular problem and symptoms that you have. Expect to be here about one hour for this test. We will review what we’re going to do for the test and make sure that you don’t have any questions. You may have orders from your doctor for an Esophageal Manomometry test, too. If you do, this test will be done first. If not, then we will lubricate a very thin tube that will be placed in your nostril and passed down into your stomach. We will then position the tube in the right place in your esophagus and tape it securely. You will leave this tube in place hooked to a small computer that will record information about your acid reflux. It is very important that you keep an accurate diary during this time. We will go over the instructions for the diary with you before you leave on the day of your test.
You will return the next day and we will remove the tube and get your diary from you. This information will be put into a computer, and the results sent to the doctor who will interpret the test, then forward the results to your doctor. You should have a follow up appointment with your doctor after the test to discuss the results.
If you have questions about this test or these instructions, please contact the Endoscopy Department at Genesis West, 563-421-1828 between the hours of 7:30 a.m. and 4:00 p.m. We would be happy to assist you.