Many tests of the anatomy and function of the gastrointestinal tract require apparatus to be inserted through the mouth or anus. Where the gut interior is to be visualized by an endoscope or barium x-ray, a clean and empty interior is required if the examination is to be a success. In some tests of gut function, as little as possible should be done to interfere with the gut’s natural performance.
Sometimes fasting is necessary, but during such tests, eating and activity should be normal and drugs that might alter gut performance should be withdrawn. For detailed descriptions of these procedures, the reader is referred to the articles below.
- Antroduodenal Manometry: Questions and Answers
- Colon Manometry
- Hydrogen Breath Tests
- Upper GI Endoscopy: What to Expect
- FAQs about Colonoscopies
- Tests for Chronic Constipation
- Diagnosis and Tests for GERD
- Diagnostic Tests in IBS Patients
- Testing of the Esophagus
- Testing of the Stomach
- Testing of the Small Intestine
- Testing of the Large Intestine
- Testing of the Anorectal and Pelvic Floor Area
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