24-hour pH monitoring of the stomach and esophagus
A 24-hour pH monitoring test of the esophagus and/or stomach is a procedure used to determine how much stomach acid enters the esophagus or stomach over a 24-hour period.
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How to prepare
A 24-hour pH monitoring of the esophagus and/or stomach is a test used to determine how much stomach acid enters the esophagus or stomach over a 24-hour period. During the procedure, a thin probe with a sensor is inserted through the nose or mouth and placed in the esophagus or stomach; it is connected to a small recording device that the patient wears on their body. During the test, the patient goes about their daily routine—eating, sleeping, and moving—while the device records episodes of acid reflux. This test is used to confirm a diagnosis of gastroesophageal reflux disease (GERD), determine its severity, and evaluate the effectiveness of treatment.
How should I prepare for the exam?
- Do not eat or drink for at least 6 hours before the procedure.
- You must stop taking certain medications (such as proton pump inhibitors or antacids) in advance, as directed by your doctor.
- On the day of the procedure, it is recommended to wear comfortable, loose-fitting clothing.
- During the examination, maintain your usual daily routine and diet unless your doctor has given you other instructions.
- Keep a diary noting your meals, sleep, physical activity, and symptoms.
- You should refrain from swimming or taking a bath during the procedure to avoid damaging the recording device.
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