to view an animated version of this test.
An upper GI endoscopy is a test that uses a fiberoptic scope to examine the esophagus, throat, stomach, and upper part of the small intestines.
Upper GI Endoscopy
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Upper GI endoscopy may be recommended if you have: Abdominal pain
heartburnPersistent nausea and vomitingDifficulty swallowingBlood in stool or vomit
or other examinations of the gastrointestinal tract
Conditions that can be diagnosed with upper GI endoscopy include: UlcersTumorsPolypsAbnormal narrowingInflammation
Problems from the procedure are rare, but all procedures have some risk. Your doctor will review potential problems, like: BleedingDamage to the esophagus, stomach, or intestine, which may include perforationInfectionReduced breathing rate and/or depthReaction to sedatives or anesthesia
Some factors that may increase the risk of complications include: Increasing age, especially age 60 and olderPregnancyObesitySmoking,
alcohol use disorder,
or drug use
DiabetesHeart or lung problemsBleeding disordersUse of certain medications
Leading up to the test: Your doctor may instruct you to take antibiotics.Arrange for a ride home after the test. Also, arrange for help at home.The night before, eat a light meal. Do not eat or drink anything for 6-10 hours before the test.
Talk to your doctor about your medications. You may be asked to stop taking some medications up to one week before the procedure.
To numb your throat, you may be given an anesthetic solution to gargle. Or, your throat may be sprayed with a numbing medication. You may be given a sedative through an IV. This is to help you relax during the test.
You may be asked to lie on your left side. You will have monitors tracking your breathing, heart rate, and blood oxygen levels. If sedation is used, you will be given supplemental oxygen to breathe through your nose.
A mouthpiece will be positioned to help keep your mouth open. During the test, a small suction tube will be used to clear saliva and fluids from your mouth. The endoscope will be lubricated and placed in your mouth. You will be asked to try to swallow it. Then, it will be carefully and slowly advanced down your throat. It will be passed through your esophagus and into your stomach and intestine.
While the endoscope is being advanced, your doctor will view the images on the screen. Air may be passed through the endoscope into your digestive tract. This will be done to smooth the normal folds in the tissues, allowing your doctor to view the tissue more easily. Tiny tools may be passed through the endoscope in order to take
or do other tests.
After the test, you will be observed for an hour. Then, you will be allowed to go home.
When you return home after the test, do the following to help ensure a smooth recovery: Rest when you get home.Ask your doctor if you can resume your normal diet. In most cases, you will be able to.Sedatives can slow your reaction time. Do not drive or use machinery for the rest of the day.Avoid alcohol for the rest of the day.
Yes, you will have discomfort during the test. Your throat will be sore. Also, you may feel bloated after the test.
This test gives your doctor information about the health of your digestive system. The results can help to explain your symptoms. You and your doctor will talk about the results and your treatment plan.
It is important to monitor your recovery. Alert your doctor to any problems. If any of the following occur, call your doctor: Signs of infection, including fever and chillsSevere abdominal painHard, swollen abdomenDifficulty swallowing or breathingAny change or increase in your original symptomsBloody or black tarry colored stoolsNausea and/or vomitingCough, shortness of breath, or chest painBleeding
If you think you have an emergency, call for medical help right away.
Davila M, Keeffe E. Complications of Upper Endoscopy.
In: Feldman M, Friedman L, Sleisenger M.
Sleisenger & Fordtran's Gastrointestinal and Liver Disease. 7th ed. Philadelphia, PA: Saunders; 2002:539-543.
Pasricha PJ. Gastrointestinal Endoscopy.
Cecil Textbook of Medicine. 21st ed. Philadelphia, PA: WB Saunders Company; 2000: 649-653.
Understanding upper endoscopy. American Society for Gastrointestinal Endoscopy website.
http://www.asge.org/patients/patients.aspx?id=378. Accessed September 30, 2014.
What is upper GI endoscopy? The American Gastroenterological Association website.
http://www.gastro.org/info_for_patients/2015/2/9/upper-gi-endoscopy. Updated April 2014. Accessed September 30, 2014.
Last reviewed August 2015 by Daus Mahnke, MD
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.
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