Exocrine pancreatic insufficiency (EPI) is a condition that happens when there’s a problem with your pancreas, mainly with how well it helps you digest food.
Your pancreas makes enzymes that break down the fats, proteins, and starches you eat so your body can use them. If the organ can’t do its job, you can have digestive and other problems, such as:
Loss of appetite
Loose, pale, oily, foul-smelling stools
The equipment used in the esophageal pH test consists of a small probe that is inserted through your nostril and positioned near the lower esophagus. The probe is plugged into a small unit (or monitor) worn on your belt or over your shoulder.
The device has several buttons that, when pressed, record:
The occurrence of symptoms
When you eat and lie down
A nurse will review the monitoring instructions with you.
Be careful with the monitor and keep it dry at all times.
How Should I Prepare for the Esophageal pH Test?
When preparing for the esophageal pH test, do not eat or drink for 4 to 6 hours before your doctor's appointment.
There are other medications that may affect the test results. Talk to your doctor about all medications you are taking before undergoing the procedure.
Do not discontinue any medication without first consulting with your primary or referring doctor. If proton pump inhibitors need to be discontinued, you may need to take a week off these medications before doing the test.