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Testosterone Replacement, Low T, HCG, & Beyond
Blood Test Discussion
Can some help me to understand the various free testosterone units and ranges?
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<blockquote data-quote="madman" data-source="post: 180678" data-attributes="member: 13851"><p>Unfortunately, when it comes to the reference ranges for measured or calculated FT they vary between different labs, and as of now, there is no standardization let alone a harmonized reference range.</p><p></p><p>Efforts are underway to standardize the procedures for FT and to generate harmonized reference ranges.</p><p></p><p>The best bet is to use the most accurate testing methods such as the gold standard Equilibrium Dialysis or Ultrafiltration (next best) if you truly want to know where your FT level sits.</p><p></p><p>Regarding calculated, there are flaws in the old linear law-of-mass action models such as the most commonly used Vermuelen.</p></blockquote><p></p>
[QUOTE="madman, post: 180678, member: 13851"] Unfortunately, when it comes to the reference ranges for measured or calculated FT they vary between different labs, and as of now, there is no standardization let alone a harmonized reference range. Efforts are underway to standardize the procedures for FT and to generate harmonized reference ranges. The best bet is to use the most accurate testing methods such as the gold standard Equilibrium Dialysis or Ultrafiltration (next best) if you truly want to know where your FT level sits. Regarding calculated, there are flaws in the old linear law-of-mass action models such as the most commonly used Vermuelen. [/QUOTE]
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Testosterone Replacement, Low T, HCG, & Beyond
Blood Test Discussion
Can some help me to understand the various free testosterone units and ranges?
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