Reasons for Test
- Diagnose or find the cause of a pain or abnormality in the digestive tract
- Locate and view tumors or abnormalities in the pancreas, bile ducts, and chest cavity
- Understand the extent of certain cancers and whether they have spread to lymph glands or other vital organs
- Take tissue samples ( biopsy ) to diagnose a condition
- Provide needle aspiration (to drain a cyst)
- Mild sore throat for 1-2 days
- Reaction to sedatives
- Regurgitation of stomach contents into the lungs
- Damage to digestive tract
- Increased age
- Having other medical conditions
What to Expect
Prior to Test
- Avoid eating or drinking (not even water) for at least six hours before the test.
- Take a special cleansing solution, laxative, or enema. This will clean out your intestines. You may also be asked to follow a clear liquid diet.
- Arrange for a ride home after the test if you have to take a sedative.
Description of the Test
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How Long Will It Take?
Will It Hurt?
Call Your Doctor
- Pain or discomfort that does not go away or worsens
- Vomiting blood, blood in stool, or dark black stool
- New or unusual symptoms
American Society for Gastrointestinal Endoscopy http://www.asge.org
National Institute of Diabetes and Digestive and Kidney Diseases http://www.niddk.nih.gov
Canadian Association of Gastroenterology http://www.cag-acg.org
Crohn's and Colitis Foundation of Canada http://www.ccfc.ca
Jacobson B, Chak A, et al. Quality indicators for endoscopic ultrasonography. American Journal of Gastroenterology. 2006;101:898-901.
Understanding EUS (endoscopic ultrasonography). American Society for Gastrointestinal Endoscopy website. Available at: http://www.asge.org/PatientInfoIndex.aspx?id=380. Accessed September 23, 2014.
- Reviewer: Daus Mahnke, MD
- Review Date: 08/2014 -
- Update Date: 09/23/2014 -