(EUS) Endoscopic Ultrasound

What is an endoscopic ultrasound (EUS)?

An endoscopic ultrasound (EUS) is a procedure that allows your doctor to examine your stomach lining, the walls of your upper and lower gastrointestinal tract, and nearby organs including the pancreas and gallbladder. An endoscopic ultrasound is performed to diagnose the cause of conditions including abdominal pain, abnormal weight loss, and more.

Preparing for an EUS

For an EUS of the upper gastrointestinal tract, you should refrain from eating or drinking anything, including water, for at least six hours prior to the procedure. For an EUS of the lower tract, your doctor will instruct you to either drink a large volume of a cleansing solution or maintain a clear liquid diet along with laxatives. Talk to your doctor about any daily medications you take or any allergies you have, especially to latex. Your doctor will provide you with full instructions on how to prepare for your EUS before your procedure.

What to expect during an EUS

An EUS typically lasts between 30-60 minutes. Before the procedure, you may be administered a mild sedative to reduce any discomfort. Your doctor will then pass a long, flexible tube through your mouth or anus to get to the area that needs to be examined. After that, your doctor will turn on the ultrasound attachment to produce sound waves that create images for your doctor to examine. After your procedure, you might experience a sore throat or mild bloating. Because of the sedative, you will not be able to work for 24 hours after the procedure and will need a companion to drive you home.

Forms for your Visit

For important information on how to prepare for your upcoming procedure, please download the forms below.