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Thyroid, Pregnenolone, Progesterone, DHEA, etc
Thyroid, DHEA, Pregnenolone, Progesterone, etc
free t3 LC/MS-MS
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<blockquote data-quote="Joey786" data-source="post: 165592" data-attributes="member: 13259"><p>Has anyone tested thyroid hormones using LC/MS-MS instead of immunoassay testing? I read a study about the inaccuracy of the immunoassay when testing levels in the lower part of the range especially for free t3. My most recent free t3 level by immunoassay was 2.5pg/ml range 2.0-4.4pg/ml. With a free t3 level of 2.5pg/ml I know I should be taking thyroid medication. I just want to know if anyone has used the LCMS-MS test and gotten different results than the immunoassay? The study mentions the immunoassay does not exclude thyroid binding proteins from the hormone measured so levels may be falsely higher than they really are.</p><p></p><p> <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5113291/" target="_blank">How reliable are free thyroid and total T3 hormone assays?</a></p></blockquote><p></p>
[QUOTE="Joey786, post: 165592, member: 13259"] Has anyone tested thyroid hormones using LC/MS-MS instead of immunoassay testing? I read a study about the inaccuracy of the immunoassay when testing levels in the lower part of the range especially for free t3. My most recent free t3 level by immunoassay was 2.5pg/ml range 2.0-4.4pg/ml. With a free t3 level of 2.5pg/ml I know I should be taking thyroid medication. I just want to know if anyone has used the LCMS-MS test and gotten different results than the immunoassay? The study mentions the immunoassay does not exclude thyroid binding proteins from the hormone measured so levels may be falsely higher than they really are. [URL="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5113291/"]How reliable are free thyroid and total T3 hormone assays?[/URL] [/QUOTE]
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Thyroid, Pregnenolone, Progesterone, DHEA, etc
Thyroid, DHEA, Pregnenolone, Progesterone, etc
free t3 LC/MS-MS
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