An esophageal pH test measures and records the pH in your esophagus to determine if you have gastroesophageal reflux disease (GERD); to establish objective evidence of disease. The test can also be performed to determine the effectiveness of medication or surgical treatment of GERD.
A procedure to examine the lining of the esophagus (the tube that connects your throat to your stomach), stomach, and first part of the small intestine. It is done with a small camera (flexible endoscope) that is inserted down the throat.
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