What Kind of Tests Are Used to Diagnose Acid Reflux, GERD or Barrett's Esophagus?

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[MUSIC] A proendoscopy/g can be performed to look for what we call endoscopic or visual evidence of Acid Reflux-related injury or for Barrett's oesophagus, which requires both an endoscopic as well as a pathologic diagnosis. Tissue biopsy's have to be obtained. To confirm or truly diagnostically confirm the presence of the Acid Reflux in the oesophagus, what has to be done is a test called the 24-hour pH study, where a prober sensor's placed in the distal/g oesophagus, to measure acid reflux over a period of 24 hours and determine if those levels of reflux are actually what we call pathological abnormal.