Do not drink any alcohol for at least 24 hours before the test. You may be asked not to take this medication before the test. Don't take antacids for 24 hours before the test. You may gag or cough. Lubricant on the catheter may have a bad taste.
Discomfort disappears when the test is finished.
Equipment used Clamp. Description of test You or a close relative will be required to sign a consent form after the procedure has been explained to you. A tube is passed through your nose into the esophagus. You will feel some discomfort or pain and may cough or gag. A liquid is slowly poured through the tube into the esophagus.