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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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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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Related Experiment Video

Updated: Jan 11, 2026

E-Patient Counseling Trial E-PACO: Computer Based Education versus Nurse Counseling for Patients to Prepare for Colonoscopy
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Modeling Tradeoffs in Reminder Intensity and Navigation for Large-Scale Mailed Stool Testing Programs.

Jennifer C Spencer1, Nicole Kluz1, Virginia Mitchell1

  • 1Department of Population Health, Dell Medical School, University of Texas at Austin, Austin, Texas.

American Journal of Preventive Medicine
|November 15, 2025
PubMed
Summary
This summary is machine-generated.

Mailed stool testing effectively increases colorectal cancer (CRC) screening. Patient navigation is cost-efficient, and low-intensity reminders maximize impact within budget constraints, optimizing CRC prevention programs.

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Area of Science:

  • Public Health
  • Health Services Research
  • Cancer Prevention

Background:

  • Mailed stool testing is a proven strategy for increasing colorectal cancer (CRC) screening rates.
  • Scaling up mailed screening programs requires careful consideration of reach, intensity, and budget.

Purpose of the Study:

  • To examine the tradeoffs between total reach, program intensity, and budget impact for mailed CRC screening programs.
  • To identify optimal strategies for scaling up mailed CRC screening programs efficiently.

Main Methods:

  • A population-based simulation model was used, reflecting 215,000 under-screened individuals in Texas over five years.
  • Strategies compared included varying reminder intensities (none, low, high) and adding patient navigator outreach.
  • 200 probabilistic scenarios were analyzed under traditional and budget-constrained frameworks.

Main Results:

  • Scenarios with patient navigation consistently outperformed those without.
  • Low-intensity reminders cost $108,000 per CRC case prevented, while high-intensity reminders added $193,000 per case.
  • Within a $13 million budget, navigation combined with low-intensity reminders maximized total program impact.

Conclusions:

  • Prioritizing patient navigation after positive stool tests is a cost-efficient strategy for CRC prevention.
  • The optimal reminder strategy for mailed CRC screening programs depends on target population size and available budget.