thyroid function test

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Introduction

A collective term used for laboratory tests to check the function of the thyroid.

Pathology

Physiology

Indications

Contraindications

Drug interactions

* affects total serum T4 & serum T3, but not free T4 or free T3[1]

# higher dose of thyroxine may be needed to normalize serum TSH in patients with hypothyroidism[1]

$ separate from thyroxine dosing by several hours[1]

Laboratory

More general terms

More specific terms

Additional terms

References

  1. Jump up to: 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 Medical Knowledge Self Assessment Program (MKSAP) 15, 16, 17, 18, 19. American College of Physicians, Philadelphia 2009, 2012, 2015, 2018, 2022.
  2. Wikipedia: Thyroid function tests http://en.wikipedia.org/wiki/Thyroid_function_test
  3. Tabatabaie V, Surks MI. The aging thyroid. Curr Opin Endocrinol Diabetes Obes. 2013 Review. PMID: https://www.ncbi.nlm.nih.gov/pubmed/23974775
  4. Demers LM, Spencer CA. Laboratory medicine practice guidelines: laboratory support for the diagnosis and monitoring of thyroid disease. Clin Endocrinol (Oxf). 2003 Feb;58(2):138-40. PMID: https://www.ncbi.nlm.nih.gov/pubmed/12580927
  5. Jump up to: 5.0 5.1 Bano A, Dhana K, Chaker L et al Association of Thyroid Function With Life Expectancy With and Without Cardiovascular Disease. The Rotterdam Study. JAMA Intern Med. Published online September 18, 2017 <PubMed> PMID: https://www.ncbi.nlm.nih.gov/pubmed/28975207 <Internet> http://jamanetwork.com/journals/jamainternalmedicine/article-abstract/2653451
  6. Burch HR Drug Effects on the Thyroid. N Engl J Med 2019; 381:749-761. Aug 22. PMID: https://www.ncbi.nlm.nih.gov/pubmed/31433922 https://www.nejm.org/doi/full/10.1056/NEJMra1901214