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Related Concept Videos

Synthesis and Regulation of Thyroid Hormones01:20

Synthesis and Regulation of Thyroid Hormones

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Low blood levels of the thyroid hormones — triiodothyronine (T3) and thyroxine (T4) — signal the hypothalamus to release the thyrotropin-releasing hormone (TRH). TRH then reaches the pituitary gland and stimulates the release of thyroid-stimulating hormone(TSH) into the bloodstream.
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Functions of Thyroid Hormones01:18

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The thyroid hormone (TH) plays a pivotal role in the intricate orchestration of physiological processes, exerting profound effects on development, metabolism, and homeostasis throughout different life stages.
TH is indispensable for the normal development and maturation of the skeletal, muscular, and nervous systems during fetal and childhood growth. It facilitates bone mineral turnover and regulates protein synthesis in developing tissues, contributing significantly to overall growth and...
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The Thyroid Gland01:23

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The thyroid gland is a small, butterfly-shaped gland located in the neck and covers the anterior surface of the trachea. The gland has two lateral lobes connected by a thin tissue mass called the isthmus. Internally, each lobe comprises many small spherical structures known as thyroid follicles, surrounded by a network of blood vessels.
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Myasthenia Gravis: Diagnostic Tests01:15

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Myasthenia gravis is an autoimmune condition affecting neuromuscular transmission, causing generalized weakness in skeletal muscles. Initial diagnoses rely on patients' signs, symptoms, and medical history. The challenge lies in distinguishing myasthenia from other muscular dystrophies. An important diagnostic feature is the significant improvement of symptoms after administering anticholinesterase inhibitors.
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Therapeutic Drug Monitoring: Drug Analysis Methods01:26

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Therapeutic Drug Monitoring (TDM) is a clinical practice that measures specific drug levels in a patient's blood or body tissues to tailor drug therapy effectively. This monitoring is critical for managing drugs with narrow therapeutic indices like digoxin and phenytoin, ensuring they are both safe and effective. For instance, monitoring theophylline levels in asthma patients involves precision and sensitivity to adjust doses according to individual responses to therapy, ensuring efficacy and...
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Pulmonary Function Tests01:25

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Pulmonary Function Tests (PFTs)
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Related Experiment Video

Updated: Mar 29, 2026

Author Spotlight: Accurately Assessing Thyroid Hormone-Driven Motor Alterations in Mouse
04:05

Author Spotlight: Accurately Assessing Thyroid Hormone-Driven Motor Alterations in Mouse

Published on: October 6, 2023

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Thyroid function testing in an inpatient mental health unit.

Kelly-Anne Garnier1, Khairul A Ismail1, Steven Moylan1

  • 1Mental Health, Drugs and Alcohol Services, Barwon Health, Geelong, VIC, Australia.

Australasian Psychiatry : Bulletin of Royal Australian and New Zealand College of Psychiatrists
|December 5, 2015
PubMed
Summary
This summary is machine-generated.

Routine thyroid function tests for psychiatric inpatients show low clinical utility. Testing is only recommended when symptoms suggest thyroid dysfunction may be contributing to the psychiatric presentation.

Keywords:
psychiatric admissionscreeningthyroid function

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Area of Science:

  • Psychiatry
  • Endocrinology
  • Health Economics

Background:

  • Thyroid function tests (TFTs) are frequently used to screen patients admitted to psychiatric units.
  • The clinical utility of these routine tests in this population is not well established.

Purpose of the Study:

  • To retrospectively assess the clinical utility of routine TFTs in newly admitted psychiatric patients.
  • To determine the yield of abnormal TFTs and their impact on patient management.

Main Methods:

  • A retrospective chart review was conducted over a 4-year period in Victoria, Australia.
  • Analysis focused on all identified abnormal TFT results in newly admitted psychiatric patients.

Main Results:

  • Only two cases (out of 893 screened patients) showed thyroid dysfunction that informed management, both in patients with known thyroid disease.
  • The cost-effectiveness was low, with one clinically relevant abnormal result costing AU$24,975.57.

Conclusions:

  • Routine admission TFTs for psychiatric inpatients demonstrate low clinical utility.
  • TFTs should be reserved for patients with clinical signs or history suggesting thyroid dysfunction contributes to their psychiatric condition.