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Testosterone Replacement, Low T, HCG, & Beyond
Blood Test Discussion
Calculate Free Testosterone with TruT by FPT
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<blockquote data-quote="tareload" data-source="post: 189408"><p>Equilibrium dialysis followed by LCMS/MS is absolutely a free testosterone assay that measures the absolute value of free testosterone. Read the calibration standardization any lab has to do qualify the test.</p><p></p><p>If what you say is correct, this graph would not exist:</p><p></p><p>[URL unfurl="true"]https://www.sciencedirect.com/science/article/pii/S0009912013000118[/URL]</p><p></p><p></p><p>[ATTACH=full]11234[/ATTACH]</p><p>[ATTACH=full]11236[/ATTACH]</p><p>[ATTACH=full]11237[/ATTACH]</p><p></p><p>If equilibrium dialysis followed by LCMS doesn't measure the absolute value of free T, then alot of people have wasted a lot of time trying to create models to fit the data. The issue I have brought up here is the disconnect between the data the authors used to create the tru-T model vs ALL the other equilbrium dialysis data I can find and all the other reference labs reference ranges. This whole thread would be pointless if each lab doing equilibrium dialysis were not attempting to measure the actual free T in serum.</p></blockquote><p></p>
[QUOTE="tareload, post: 189408"] Equilibrium dialysis followed by LCMS/MS is absolutely a free testosterone assay that measures the absolute value of free testosterone. Read the calibration standardization any lab has to do qualify the test. If what you say is correct, this graph would not exist: [URL unfurl="true"]https://www.sciencedirect.com/science/article/pii/S0009912013000118[/URL] [ATTACH type="full" alt="1603407209523.png"]11234[/ATTACH] [ATTACH type="full" alt="1603407329659.png"]11236[/ATTACH] [ATTACH type="full" alt="1603407346839.png"]11237[/ATTACH] If equilibrium dialysis followed by LCMS doesn't measure the absolute value of free T, then alot of people have wasted a lot of time trying to create models to fit the data. The issue I have brought up here is the disconnect between the data the authors used to create the tru-T model vs ALL the other equilbrium dialysis data I can find and all the other reference labs reference ranges. This whole thread would be pointless if each lab doing equilibrium dialysis were not attempting to measure the actual free T in serum. [/QUOTE]
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Testosterone Replacement, Low T, HCG, & Beyond
Blood Test Discussion
Calculate Free Testosterone with TruT by FPT
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