Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Hormonal Regulation01:40

Hormonal Regulation

Hormones regulate a significant portion of digestion through activation of the neuroendocrine system. The neuroendocrine system of digestion contains many different hormones all with multiple functions that are both, directly and indirectly, involved in digestion.
Intestinal Phase of Digestion01:29

Intestinal Phase of Digestion

The intestinal phase of digestion is the third and final stage of the digestive process, occurring after the cephalic and gastric phases. It begins when chyme, a partially digested mixture of food and digestive enzymes, enters the small intestine from the stomach. This phase is crucial for nutrient absorption and involves complex hormonal and enzymatic interactions.
The arrival of the chyme in the small intestine distends the duodenum, which triggers the enterogastric reflex. This distension...
Anatomy of the Gastrointestinal System01:26

Anatomy of the Gastrointestinal System

The human digestive system is an intricate and essential network for nutrient absorption and waste elimination. It encompasses the gastrointestinal (GI) tract and several accessory organs.
Here's a detailed walkthrough of this complex system:
Assessment of the Rectum and Anus01:25

Assessment of the Rectum and Anus

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
Begin by inspecting the perianal and anal areas for color, texture, rashes,...
Serum Laboratory Studies, Stool Test, Breath Test01:30

Serum Laboratory Studies, Stool Test, Breath Test

Gastrointestinal (GI) diagnostic studies are pivotal in confirming, ruling out, diagnosing, or staging various diseases, including cancers. Following diagnosis, allocating time for discussions with the patient and providing informational resources is crucial. Diagnostic assessments of the GI tract often occur in outpatient settings like endoscopy suites or GI labs. Preparation for these tests may include dietary restrictions, fasting, liquid bowel preparations, laxatives, enemas, and the...
Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy01:26

Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy

This lesson explores three gastrointestinal imaging techniques: radionuclide testing, colonic transit studies, and virtual colonoscopy.
Radionuclide Testing
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.
In gastric emptying studies, a meal's liquid and solid...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Islet cells in human type 1 diabetes: from recent advances to novel therapies - a symposium-based roadmap for future research.

The Journal of endocrinology·2023
Same author

Immunotherapy for type 1 diabetes.

British medical bulletin·2021
Same author

The 2021 European Group on Graves' orbitopathy (EUGOGO) clinical practice guidelines for the medical management of Graves' orbitopathy.

European journal of endocrinology·2021
Same author

Referral rates of patients with diabetes to secondary care are inversely related to the prevalence of diabetes in each primary care practice and confidence in treatment, not to HbA1c level.

Primary care diabetes·2021
Same author

Announcing the first AoP webinar: 'Can evidence-based medicine survive in a pandemic?'

QJM : monthly journal of the Association of Physicians·2020
Same author

Asymmetry indicates more severe and active disease in Graves' orbitopathy: results from a prospective cross-sectional multicentre study.

Journal of endocrinological investigation·2020
Same journal

Medical compartmentalisation: a patient with chromosome 22q11.2 deletion syndrome in Japan.

Lancet (London, England)·2026
Same journal

[<sup>177</sup>Lu]Lu-edotreotide versus everolimus for gastroenteropancreatic neuroendocrine tumours (COMPETE): a phase 3, multicentre, randomised, open-label, superiority trial.

Lancet (London, England)·2026
Same journal

Research priorities for characterising Bundibugyo virus.

Lancet (London, England)·2026
Same journal

Rethinking treatment sequence in advanced gastroenteropancreatic neuroendocrine tumours.

Lancet (London, England)·2026
Same journal

Dual mobility total hip replacement in fractures: stability promotes patient confidence.

Lancet (London, England)·2026
Same journal

Dual mobility versus standard cups in total hip replacement for displaced femoral neck fractures (Duality): an international, multicentre, randomised, controlled, superiority trial.

Lancet (London, England)·2026
See all related articles

Related Experiment Video

Updated: Jun 29, 2026

Isolating and Using Sections of Bovine Mesenteric Artery and Vein as a Bioassay to Test for Vasoactivity in the Small Intestine
07:32

Isolating and Using Sections of Bovine Mesenteric Artery and Vein as a Bioassay to Test for Vasoactivity in the Small Intestine

Published on: October 7, 2014

Interpretation of thyroid function tests.

C M Dayan1

  • 1University Department of Medicine, Bristol Royal Infirmary, UK. colin.dayan@bris.ac.uk

Lancet (London, England)
|September 18, 2001
PubMed
Summary
This summary is machine-generated.

Interpreting thyroid function tests is simpler with sensitive assays. This review categorizes results into six patterns, aiding diagnosis with thyrotropin, free T3, and free T4 measurements.

More Related Videos

Using Multi-fluorinated Bile Acids and In Vivo Magnetic Resonance Imaging to Measure Bile Acid Transport
08:42

Using Multi-fluorinated Bile Acids and In Vivo Magnetic Resonance Imaging to Measure Bile Acid Transport

Published on: November 27, 2016

Mechanisms Underlying Gut Hormone Secretion Using the Isolated Perfused Rat Small Intestine
07:00

Mechanisms Underlying Gut Hormone Secretion Using the Isolated Perfused Rat Small Intestine

Published on: February 26, 2019

Related Experiment Videos

Last Updated: Jun 29, 2026

Isolating and Using Sections of Bovine Mesenteric Artery and Vein as a Bioassay to Test for Vasoactivity in the Small Intestine
07:32

Isolating and Using Sections of Bovine Mesenteric Artery and Vein as a Bioassay to Test for Vasoactivity in the Small Intestine

Published on: October 7, 2014

Using Multi-fluorinated Bile Acids and In Vivo Magnetic Resonance Imaging to Measure Bile Acid Transport
08:42

Using Multi-fluorinated Bile Acids and In Vivo Magnetic Resonance Imaging to Measure Bile Acid Transport

Published on: November 27, 2016

Mechanisms Underlying Gut Hormone Secretion Using the Isolated Perfused Rat Small Intestine
07:00

Mechanisms Underlying Gut Hormone Secretion Using the Isolated Perfused Rat Small Intestine

Published on: February 26, 2019

Area of Science:

  • Endocrinology
  • Clinical Chemistry

Background:

  • Sensitive thyrotropin (TSH) assays and free thyroid hormone measurements have improved thyroid function test (TFT) interpretation.
  • Despite advancements, diagnostic challenges and pitfalls persist in evaluating thyroid status.

Purpose of the Study:

  • To review and categorize common patterns of thyroid function test results.
  • To provide a framework for diagnosing thyroid disorders using TSH, free T3, and free T4 levels.

Main Methods:

  • Classification of TFT results into six distinct patterns.
  • Integration of assay results with clinical information and supplementary tests.

Main Results:

  • The proposed six patterns encompass a wide range of TFT results.
  • Combining pattern recognition with clinical data and further testing enables diagnosis in most cases.

Conclusions:

  • A systematic approach using TSH, free T3, and free T4 assays, along with pattern recognition, simplifies complex thyroid function test interpretations.
  • This strategy enhances diagnostic accuracy for a broad spectrum of thyroid conditions.