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Related Concept Videos

Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy01:26

Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy

This lesson explores three gastrointestinal imaging techniques: radionuclide testing, colonic transit studies, and virtual colonoscopy.
Radionuclide Testing
Radionuclide testing is a sophisticated medical technique for assessing gastrointestinal motility. It focuses on gastric emptying and colonic transit time. Radioactive markers track the movement of food through the digestive system, providing insights into gastrointestinal disorders.
In gastric emptying studies, a meal's liquid and solid...
Endoscopic Procedures I: Esophagogastroduodenoscopy01:29

Endoscopic Procedures I: Esophagogastroduodenoscopy

An Esophagogastroduodenoscopy (EGD) is a diagnostic procedure in which an endoscopist uses a flexible, lighted endoscope to visualize the upper gastrointestinal (GI) tract. The procedure includes visualizing the oropharynx, esophagus, stomach, and the first part of the small intestine, the duodenum.
During an EGD, the endoscope can be used to:
Endoscopic Procedures II: Colonoscopy01:25

Endoscopic Procedures II: Colonoscopy

The colon, or large intestine, is the final segment of the digestive system. Its primary functions include absorbing water and vitamins produced by gut bacteria and transforming waste from liquid to solid to form stool. In adults, the large intestine is approximately 5 feet long and consists of four main sections:
Endoscopic Procedures III: Video Capsule Endoscopy01:28

Endoscopic Procedures III: Video Capsule Endoscopy

Capsule endoscopy, or wireless or video capsule endoscopy, is a diagnostic procedure for examining the entire gastrointestinal tract. Patients swallow a capsule about the size of a vitamin tablet. The capsule is equipped with a transmitter, a battery, an LED light source, and a color video camera to capture images throughout the gastrointestinal tract. This procedure is particularly useful for diagnosing conditions such as Crohn's disease, ulcerative colitis, tumors, polyps, ulcers, unexplained...
Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy01:26

Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy

Sigmoidoscopy and laparoscopy are distinct medical procedures that enable physicians to internally inspect different parts of the GI tract. Although they serve different purposes, each is essential for diagnosing and, in some cases, treating various medical conditions.
Sigmoidoscopy
Sigmoidoscopy is a diagnostic procedure that uses a flexible sigmoidoscope equipped with a light source and camera to examine the rectum and sigmoid colon. The procedure involves inserting the tube through the anus...
Lower GI Series: Barium Enema01:23

Lower GI Series: Barium Enema

A Barium Enema, or a lower GI series, is a specialized radiographic examination designed to visualize the lower gastrointestinal tract, specifically the colon and rectum. This procedure is instrumental in diagnosing various conditions such as colorectal cancer, polyps, diverticulosis, and inflammatory bowel disease.
Procedure Details
The examination begins by inserting a lubricated rectal tube into the patient's rectum to administer a radiopaque barium solution. The barium flow is carefully...

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Related Experiment Video

Updated: Jul 16, 2026

Fecal Microbiota Transplantation via Colonoscopy for Recurrent C. difficile Infection
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Review article: colon cleansing preparation for gastrointestinal procedures.

T K Toledo1, J A DiPalma

  • 1Division of Gastroenterology, University of South Alabama College of Medicine, Mobile, Alabama 36693, USA.

Alimentary Pharmacology & Therapeutics
|May 1, 2001
PubMed
Summary

Effective colon cleansing is crucial for accurate diagnostic and surgical procedures. Various well-tolerated methods, including diet, laxatives, and lavage solutions, ensure patient compliance and procedural success.

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Area of Science:

  • Gastroenterology
  • Medical Procedures

Background:

  • Adequate colon cleansing is vital for the accuracy and safety of diagnostic and surgical colon procedures.
  • Patient compliance is improved by using simple and well-tolerated preparation methods.

Purpose of the Study:

  • To review the development and clinical experience of various colon cleansing regimens.
  • To highlight methods that enhance patient compliance and procedural success.

Main Methods:

  • Discussion of dietary modifications (clear liquids, low-residue diets).
  • Overview of pharmacological agents including laxatives, cathartics, and enemas.
  • Examination of osmotically balanced electrolyte lavage solutions and oral sodium phosphate preparations.

Main Results:

  • Various colon cleansing methods, including diet, laxatives, and lavage solutions, have demonstrated safety and efficacy.
  • Oral sodium phosphate offers good efficacy with a small administration volume.
  • Adjunctive agents like bisacodyl may be needed for specific procedures like barium enema X-ray.

Conclusions:

  • All discussed colon cleansing regimens are generally well-tolerated by patients.
  • The choice of method impacts diagnostic accuracy, procedural safety, and patient compliance.
  • Continued clinical experience supports the effectiveness of these preparation techniques.