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Alternative Names Return to top
Acid perfusion testDefinition Return to top
The Bernstein test is a method to reproduce symptoms of heartburn. It is usually done with other tests to measure esophageal function.
How the Test is Performed Return to top
The test is done in a laboratory. A nasogastric (NG) tube will be inserted through one side of your nose and down into your esophagus. Mild hydrochloric acid will be sent down the tube, followed by salt water (saline) solution.
You will be asked to tell the health care team about any pain or discomfort you have during the test.
How to Prepare for the Test Return to top
You should not eat or drink anything for 8 hours before the test.
How the Test Will Feel Return to top
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.
Why the Test is Performed Return to top
The test attempts to reproduce symptoms of gastroesophageal reflux (stomach acids coming back up into the esophagus).
Normal Results Return to top
The test results will be negative.
What Abnormal Results Mean Return to top
Positive test indicates that the symptoms are caused by esophageal reflux.
Risks Return to top
There is a risk of gagging or vomiting.
References Return to top
Fass R. Evaluation and diagnosis of noncardiac chest pain. Dis Mon. 2008;54:627-641.
Update Date: 8/22/2008 Updated by: Christian Stone, MD, Division of Gastroenterology, Washington University in St. Louis School of Medicine, St. Louis, MO. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
