https://wikimd.org/index.php?action=history&feed=atom&title=Thyroid_function_testsThyroid function tests - Revision history2026-05-08T16:53:52ZRevision history for this page on the wikiMediaWiki 1.44.2https://wikimd.org/index.php?title=Thyroid_function_tests&diff=5054631&oldid=prevKondreddy Naveen at 00:39, 1 December 20232023-12-01T00:39:13Z<p></p>
<p><b>New page</b></p><div>= Thyroid Function Tests =<br />
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[[File:Pmk 3.jpg|thumb|right|A laboratory technician performing thyroid function tests.|link=Thyroid_function_tests]]<br />
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'''Thyroid function tests''' are a series of blood tests used to evaluate the functioning of the [[Thyroid|thyroid gland]], an essential gland in the human body responsible for regulating metabolism, energy generation, and growth and development.<br />
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== Purpose of Thyroid Function Tests ==<br />
These tests are used to:<br />
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* Diagnose thyroid disorders, such as [[Hypothyroidism|hypothyroidism]] (underactive thyroid) or [[Hyperthyroidism|hyperthyroidism]] (overactive thyroid).<br />
* Monitor the effectiveness of thyroid treatments.<br />
* Screen for thyroid diseases in newborns, pregnant women, or individuals with related symptoms or risk factors.<br />
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== Common Thyroid Function Tests ==<br />
The most common thyroid function tests include:<br />
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* '''Thyroid-Stimulating Hormone (TSH) Test''': Measures the level of TSH, a hormone produced by the [[Pituitary gland|pituitary gland]] that regulates thyroid hormone production.<br />
* '''Free Thyroxine (FT4) Test''': Assesses the level of free thyroxine, one of the main hormones produced by the thyroid gland.<br />
* '''Free Triiodothyronine (FT3) Test''': Measures free triiodothyronine, another primary thyroid hormone.<br />
* '''Thyroid Antibody Tests''': Detect the presence of antibodies against thyroid tissues, useful in diagnosing autoimmune thyroid diseases like [[Graves' disease]] or [[Hashimoto's thyroiditis]].<br />
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== Interpreting Test Results ==<br />
Test results are interpreted based on:<br />
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* Normal, high, or low levels of these hormones.<br />
* The balance between different hormones.<br />
* Comparison with normal reference ranges.<br />
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== When to Get Tested ==<br />
Thyroid function tests may be recommended if an individual:<br />
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* Exhibits symptoms of thyroid dysfunction, such as fatigue, weight changes, or temperature sensitivity.<br />
* Has a family history of thyroid disease.<br />
* Is receiving treatment for thyroid disorders and needs monitoring.<br />
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== Limitations and Considerations ==<br />
While thyroid function tests are crucial for diagnosing and managing thyroid conditions, they have limitations:<br />
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* Hormone levels can be influenced by other medications, supplements, or health conditions.<br />
* Results may require correlation with clinical symptoms and other investigations for accurate diagnosis.<br />
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== Advances in Testing ==<br />
The field of thyroid function testing continues to evolve with:<br />
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* More sensitive and accurate testing methods.<br />
* Research into additional markers of thyroid health.<br />
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[[Category:Endocrinology]]<br />
[[Category:Diagnostic Medicine]]<br />
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