This volume is an up-to-date review of the basic tests in gastroenterology. It provides a critical analysis of recently developed tests and a thorough appraisal of well-established methods. The text of this edition has been completely revised and re-organised. The selection of tests, their performance and the interpretation of results is presented in a logical and readily accessible format. Most of the chapters deal with the separate organ systems. Copious references to further reading are provided throughout the text, which is enhanced by clear illustrations. Topics covered include: Helicobacter pylori; upper digestive endoscopy; intubation; oesophagus; stomach; duodenum; small and large bowel; absorption; gastrointestinal bleeding; stool examination; pancreas; liver biochemistry, biopsy and radiology; gallbladder and bile ducts; pancreas; laparoscopy and the peritoneum.