Diagnosis and Test of GERD

  • Your symptoms. Your doctor may be able to diagnose GERD based on frequent heartburn and other symptoms.
  • A test to monitor the amount of acid in your esophagus. Ambulatory acid (pH) probe tests use a device to measure acid for 24 hours
  • A flexible tube to look inside your esophagus. Endoscopy is a way to visually examine the inside of your esophagus and stomach. During endoscopy, your doctor inserts a thin, flexible tube equipped with a light and camera (endoscope) down your throat. Your doctor may also use endoscopy to collect a sample of tissue (biopsy) for further testing. Endoscopy is useful in looking for complications of reflux, such as Barrett's esophagus.
  • A test to measure the movement of the esophagus. Esophageal motility testing (manometer) measures movement and pressure in the esophagus. The test involves placing a catheter through your nose and into your esophagus.
  • An X-ray of your upper digestive system. Sometimes called a barium swallow or upper GI series, this procedure involves drinking a chalky liquid that coats and fills the inside lining of your digestive tract. Then X-rays are taken of your upper digestive tract. The coating allows your doctor to see a silhouette of your esophagus, stomach and upper intestine (duodenum).

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