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Related Concept Videos

Assessment of the Rectum and Anus01:25

Assessment of the Rectum and Anus

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Evaluating the rectum and anus plays a crucial role in conducting a thorough physical examination of the gastrointestinal system. Although it may be uncomfortable and often embarrassing for the patient, it holds immense diagnostic value, particularly in detecting gastrointestinal diseases and abnormalities. This guide will explain how to perform this assessment using inspection and palpation methods.
Rectal Inspection
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Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy01:26

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This lesson explores three gastrointestinal imaging techniques: radionuclide testing, colonic transit studies, and virtual colonoscopy.
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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.
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Rectal temperature measurement is considered the most precise method for assessing core body temperature and typically registers higher than oral temperature. For adults, the rectal thermometer should be inserted 1 to 1.5 inches into the rectum to obtain the most accurate reading.
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Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy01:26

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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.
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Introduction
The abdominal examination is a cornerstone of clinical medicine, serving as a critical tool in diagnosing various gastrointestinal (GI) diseases. It involves a systematic approach that includes inspection and auscultation, each with distinct yet complementary roles in assessing the abdomen. This article will delve into these two primary methods healthcare professionals use to examine the abdomen.
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Endoscopic Procedures II: Colonoscopy01:25

Endoscopic Procedures II: Colonoscopy

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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:
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Related Experiment Video

Updated: Oct 15, 2025

Quantification of Levator Ani Hiatus Enlargement by Magnetic Resonance Imaging in Males and Females with Pelvic Organ Prolapse
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[Investigations of Anorectal Function].

Mark Fox1, Konstantinos Markopoulos2, Miriam Flückiger2

  • 1Magen Darm Funktion Basel, Labor und Klinik für Motilitätsstörungen und funktionelle Magendarm Erkrankungen, Zentrum für Integrative Gastroenterologie, Klinik Arlesheim.

Therapeutische Umschau. Revue Therapeutique
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Summary

Anorectal manometry assesses anal sphincter pressure and rectal sensitivity to evaluate bowel emptying disorders like constipation and incontinence. Comprehensive testing is crucial for accurate diagnosis and treatment planning.

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Area of Science:

  • Gastroenterology
  • Physiology

Background:

  • Anorectal function investigations are vital for diagnosing bowel emptying issues.
  • Chronic defecation disorders, constipation, and fecal incontinence often require detailed assessment.

Purpose of the Study:

  • To outline the diagnostic utility of anorectal function tests.
  • To emphasize the need for comprehensive assessment in anorectal disorders.

Main Methods:

  • Anorectal manometry measures anal sphincter pressure, rectal sensitivity, and rectoanal reflexes.
  • Balloon expulsion test complements manometry to assess functional consistency.
  • Diagnostic work-up includes detailed history, endoscopy, and imaging (endosonography, MR defecography).

Main Results:

  • Anorectal manometry helps assess functional impairment and differentiate organic from functional disorders.
  • No single test provides a complete diagnosis due to high variability and complexity.
  • Combined investigations are necessary for conclusive diagnosis and treatment guidance.

Conclusions:

  • Comprehensive anorectal function testing is essential for diagnosing complex defecation disorders.
  • Anorectal manometry, alongside other procedures, aids in clarifying pelvic floor dysfunction.
  • Integrated diagnostic approaches improve diagnostic accuracy and inform treatment decisions for anorectal conditions.