Reply to thread

Message

Never compare different assays let alone reference ranges from different labs.

When getting blood work stick to using the same lab/assays (most accurate).

Regarding free testosterone, the most accurate assay is the gold Standard Equilibrium Dialysis or Ultrafiltration (next best).

Forget relying on the direct immunoassay or linear law-of-mass action Vermeulen calculated method.

LABCORP:

EQUILIBRIUM DIALYSIS
[URL unfurl="true"]https://www.labcorp.com/tests/500726/testosterone-free-mass-spectrometry-equilibrium-dialysis-endocrine-sciences[/URL]

EQUILIBRIUM ULTRAFILTRATION
[URL unfurl="true"]https://www.labcorp.com/tests/081786/testosterone-free-equilibrium-ultrafiltration-with-total-testosterone[/URL]

NELSONS DiscountedLabs

[URL unfurl="true"]https://www.discountedlabs.com/testosterone-free-dialysis-and-total-ls-ms-ms[/URL]

Look over post #13
[URL unfurl="true"]https://www.excelmale.com/forum/threads/complete-apathy-depression-from-too-high-e2.21596/#post-185169[/URL]

<blockquote data-quote="madman" data-source="post: 185803" data-attributes="member: 13851">Never compare different assays let alone reference ranges from different labs.When getting blood work stick to using the same lab/assays (most accurate).Regarding free testosterone, the most accurate assay is the gold Standard Equilibrium Dialysis or Ultrafiltration (next best).Forget relying on the direct immunoassay or linear law-of-mass action Vermeulen calculated method.LABCORP:EQUILIBRIUM DIALYSIS[URL unfurl=&quot;true&quot;]https://www.labcorp.com/tests/500726/testosterone-free-mass-spectrometry-equilibrium-dialysis-endocrine-sciences[/URL]EQUILIBRIUM ULTRAFILTRATION[URL unfurl=&quot;true&quot;]https://www.labcorp.com/tests/081786/testosterone-free-equilibrium-ultrafiltration-with-total-testosterone[/URL]NELSONS DiscountedLabs[URL unfurl=&quot;true&quot;]https://www.discountedlabs.com/testosterone-free-dialysis-and-total-ls-ms-ms[/URL]Look over post #13[URL unfurl=&quot;true&quot;]https://www.excelmale.com/forum/threads/complete-apathy-depression-from-too-high-e2.21596/#post-185169[/URL]</blockquote>

[QUOTE="madman, post: 185803, member: 13851"] Never compare different assays let alone reference ranges from different labs. When getting blood work stick to using the same lab/assays (most accurate). Regarding free testosterone, the most accurate assay is the gold Standard Equilibrium Dialysis or Ultrafiltration (next best). Forget relying on the direct immunoassay or linear law-of-mass action Vermeulen calculated method. [B]LABCORP:[/B] [COLOR=rgb(184, 49, 47)]EQUILIBRIUM DIALYSIS[/COLOR] [URL unfurl="true"]https://www.labcorp.com/tests/500726/testosterone-free-mass-spectrometry-equilibrium-dialysis-endocrine-sciences[/URL] [COLOR=rgb(184, 49, 47)]EQUILIBRIUM ULTRAFILTRATION[/COLOR] [URL unfurl="true"]https://www.labcorp.com/tests/081786/testosterone-free-equilibrium-ultrafiltration-with-total-testosterone[/URL] [B]NELSONS DiscountedLabs[/B] [URL unfurl="true"]https://www.discountedlabs.com/testosterone-free-dialysis-and-total-ls-ms-ms[/URL] Look over [COLOR=rgb(184, 49, 47)]post #13[/COLOR] [URL unfurl="true"]https://www.excelmale.com/forum/threads/complete-apathy-depression-from-too-high-e2.21596/#post-185169[/URL] [/QUOTE]