Diagnosis of GERD is based on:
Jul. 31, 2014
- 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. The device identifies when, and for how long, stomach acid regurgitates into your esophagus. One type of monitor is a thin, flexible tube (catheter) that's threaded through your nose into your esophagus. The tube connects to a small computer that you wear around your waist or with a strap over your shoulder.
Another type is a clip that's placed in your esophagus during endoscopy. The probe transmits a signal, also to a small computer that you wear. After about two days, the probe falls off to be passed in your stool. Your doctor may ask that you stop taking GERD medications to prepare for this test.
If you have GERD and you're a candidate for surgery, you may also have other tests, such as:
- 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).
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 (manometry) measures movement and pressure in the esophagus. The test involves placing a catheter through your nose and into your esophagus.
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