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Endoscopic Ultrasound (Oral): Before Your Procedure

What is oral endoscopic ultrasound?

Oral endoscopic ultrasound is a test that lets your doctor look at the walls of your esophagus, stomach, and upper gastrointestinal tract. The test does not use X-rays or other radiation.

The doctor uses a thin, lighted tube that bends. It's called an endoscope, or scope. The scope has an ultrasound probe and camera at the tip. The doctor gently puts the scope into your mouth, down the esophagus, and into the stomach to the area to be examined. The scope can take pictures of organs. It helps look for problems in the stomach, liver, gallbladder, pancreas, and the first part of your small intestine, called the duodenum.

The procedure can take up to an hour if a sample of tissue is taken to be tested. This is called a biopsy.

You will not feel pain. You may go home after your doctor checks to make sure you are not having any problems.

Follow-up care is a key part of your treatment and safety. Be sure to make and go to all appointments, and call your doctor or nurse call line if you are having problems. It's also a good idea to know your test results and keep a list of the medicines you take.

How do you prepare for the procedure?

Procedures can be stressful. This information will help you understand what you can expect. And it will help you safely prepare for your procedure.

Preparing for the procedure

  • Be sure you have someone to take you home. Anesthesia and pain medicine will make it unsafe for you to drive or get home on your own.
  • Understand exactly what procedure is planned, along with the risks, benefits, and other options.
  • Tell your doctor ALL the medicines and natural health products you take. Some may increase the risk of problems during your procedure. Your doctor will tell you if you should stop taking any of them before the procedure and how soon to do it.
  • If you take aspirin or some other blood thinner, ask your doctor if you should stop taking it before your procedure. Make sure that you understand exactly what your doctor wants you to do. These medicines increase the risk of bleeding.
  • Make sure your doctor and the hospital have a copy of your advance care plan. If you don't have one, you may want to prepare one. It lets others know your health care wishes. It's a good thing to have before any type of surgery or procedure.

Procedures can be stressful. This information will help you understand what you can expect. And it will help you safely prepare for your procedure.

What happens on the day of the procedure?

  • Follow the instructions exactly about when to stop eating and drinking. If you don't, your procedure may be cancelled. If your doctor told you to take your medicines on the day of the procedure, take them with only a sip of water.
  • Take a bath or shower before you come in for your procedure. Do not apply lotions, perfumes, deodorants, or nail polish.
  • Take off all jewellery and piercings. And take out contact lenses, if you wear them.

At the hospital or surgery centre

  • Bring a picture ID.
  • You will lie on your left side. The doctor will put the scope in your mouth and toward the back of your throat. The doctor will tell you when to swallow. This helps the scope move down your throat. You will be able to breathe normally. The doctor will move the scope down your esophagus into your stomach.
  • If your doctor wants to take a sample of tissue for biopsy, he or she may use small surgical tools. These are put into the scope to cut off some tissue. You will not feel a biopsy, if one is taken. The doctor can also use the tools to stop bleeding, if needed.
  • The doctor will send puffs of air through the tube to see better. This may make you feel bloated, and you may feel cramps. This feeling does not last long.
  • You may feel some bloating or cramping as the tube is moved. If you feel a lot of discomfort, you can alert the doctor with an agreed-upon signal or a tap on the arm.
  • You will stay at the hospital or surgery centre for 1 to 2 hours until the medicine you were given wears off.

When should you call your doctor?

  • You have questions or concerns.
  • You don't understand how to prepare for your procedure.
  • You become ill before the procedure (such as fever, flu, or a cold).
  • You need to reschedule or have changed your mind about having the procedure.

Where can you learn more?

Go to https://www.healthwise.net/patientEd

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Care instructions adapted under license by your healthcare professional. If you have questions about a medical condition or this instruction, always ask your healthcare professional. Healthwise, Incorporated disclaims any warranty or liability for your use of this information.