Esophageal Manometry
Esophageal manometry is a test that measures the pressure inside the lower part of the esophagus. The area of specialized muscle located at the bottom of the esophagus is called the lower esophageal sphincter (LES).
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pH Probe Studies
A pH probe is a test used to test for the amount and seriousness of acid reflux, or stomach acids that back up into the esophagus. A small flexible tube will be passed through one of your nostrils and placed into position in the esophagus.
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