What is a gastroscopy?

It is an examination of the inside of your oesophagus (gullet), the stomach and the duodenum (the first bend of the small intestine). See the diagram. A thin, flexible tube approximately the size of a woman’s little finger (a gastroscope) is passed through the mouth into the stomach. The tip of the endoscope contains a light and a tiny video camera so that the endoscopist can see inside your gut, allowing the endoscopist to see what might be causing the symptoms that you are experiencing. (This procedure is sometimes called an endoscopy).



Preparation for the test

  • For this examination to be successful and allow a clear view of the stomach and colon, they must be as empty.
  • It is important to have nothing to eat or drink for 6 hours before your test.
  • If you have diabetes or haemophilia, please phone the Ward for specific advice.
  • If you are taking warfarin, clopidogrel, or other blood thinning medications, please inform us at least one week before the test.
  • If you have a pacemaker or ICD, please inform us at least one week before the test.

The test may be affected if you are taking certain medications for the stomach. Stop taking the following drugs one week before the test if you have not been diagnosed with an ulcer or Barrett’s Oesophagus:

  • Cimetidine (Tagamet)
  • Ranitidine (Zantac)
  • Nizatidine (Axid)
  • Lansoprazole (Zoton)
  • Omeprazole (Losec)
  • Pantoprazole (Protium)
  • Rabeprazole (Pariet)
  • Esomeprazole (Nexium)
  • Fanotidine (Pepcid).

Continue to take your other medications with a sip of water.

  • Please bring a list of any medications you are currently taking.
  • If you have any queries about your medication please ring the ward.
  • It is especially important to remember to bring any asthma inhalers or angina sprays with you.
  • Do not bring any valuables to the ward.

Click the link for a check list for your gastroscopy

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