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The Bernstein test is a method to reproduce symptoms of heartburn. It is usually done with other tests to measure esophageal function.
Acid perfusion test
The test is done in a laboratory. A nasogastric (NG) tube will be inserted through your one side of your nose and down into your esophagus. Mild hydrochloric acid will be sent down the tube, followed by saline (salt water) solution. You will be asked to tell the health care team about any pain or discomfort you have during the test.
You should not eat or drink anything for 8 hours before the test.
You may have a gagging feeling and some discomfort when the tube is put into place. The acid may cause symptoms of heartburn. Your throat may be sore after the test.
The test attempts to reproduce symptoms of gastroesophageal reflux (stomach acids coming back up into the esophagus).
The test results will be negative.
Positive test indicates that the symptoms are caused by esophageal reflux.
There is a risk of gagging or vomiting.
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