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Related Concept Videos

Exocrine Glands: Methods of Secretion01:08

Exocrine Glands: Methods of Secretion

Exocrine glands are those that release their secretions through ducts. Based on their mode of secretion, they can be classified into merocrine, apocrine, and holocrine.
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Mechanisms Underlying Gut Hormone Secretion Using the Isolated Perfused Rat Small Intestine
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Published on: February 26, 2019

Secretion and absorption (methods and functions).

Paul Georg Lankisch1

  • 1paulgeorg.lankisch@t-online.de

Best Practice & Research. Clinical Gastroenterology
|June 10, 2009
PubMed
Summary
This summary is machine-generated.

Gastrointestinal function tests aid in diagnosing abdominal complaints when other methods fail. This chapter details secretion and absorption tests, including older methods still relevant for specific diagnoses.

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Area of Science:

  • Gastroenterology
  • Diagnostic Medicine
  • Clinical Physiology

Background:

  • Endoscopic procedures have reduced the reliance on traditional secretion and absorption tests.
  • Conventional diagnostic methods establish organic causes in only about half of patients with abdominal complaints.
  • Gastrointestinal function tests remain crucial for diagnosing unexplained abdominal symptoms.

Purpose of the Study:

  • To outline the indications, practical performance, and interpretation of gastrointestinal secretion and absorption tests.
  • To provide a comprehensive guide to diagnostic tests for gastrointestinal function.
  • To address the continued relevance of established tests, even older ones, in clinical practice.

Main Methods:

  • Review and description of established gastrointestinal secretion and absorption tests.
  • Focus on practical aspects including indications, performance, and interpretation.
  • Inclusion of historical tests where no modern alternatives exist.

Main Results:

  • Detailed guidance on performing and interpreting various gastrointestinal secretion and absorption tests.
  • Emphasis on the diagnostic utility of these tests when other methods are inconclusive.
  • Adaptation of descriptions based on author's clinical experience.

Conclusions:

  • Gastrointestinal secretion and absorption tests remain valuable tools for diagnosing patients with abdominal complaints.
  • These tests provide essential diagnostic information, particularly when imaging and laboratory tests are negative.
  • The chapter serves as a practical resource for clinicians utilizing these functional tests.