Abstract
Endoscopic examination is important in evaluating and managing upper and lower gastrointestinal problems. Digestive disorders are extremely common in the general population and in general practitioners' surgeries. About 1% of the general population has an endoscopy each year, although this proportion varies widely among health districts and regions.2 3 An endoscopic diagnosis is generally agreed to be required before long term treatment is started, although the introduction of near patient testing for Helicobacter pylori may change practice in relation to duodenal ulcer …