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Testosterone Replacement, Low T, HCG, & Beyond
Blood Test Discussion
SubQ might not doing it for me
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<blockquote data-quote="Cataceous" data-source="post: 142884" data-attributes="member: 38109"><p>Absorption with subQ is going to be the same, basically 100%. It's the timing of release that's different. However, with frequent injections of a long-lived ester the difference in serum levels should be negligible. Your results are compatible with this. There can be significant inter-test variability, and hCG can make a nontrivial contribution to total testosterone.</p><p></p><p>Regarding free T, if you use equilibrium dialysis or LC/MS to test then results <em>might</em> be comparable between labs. Otherwise, forget it. Simpler is to always measure SHBG with total T and calculate free T. These numbers should be fairly consistent between labs.</p></blockquote><p></p>
[QUOTE="Cataceous, post: 142884, member: 38109"] Absorption with subQ is going to be the same, basically 100%. It's the timing of release that's different. However, with frequent injections of a long-lived ester the difference in serum levels should be negligible. Your results are compatible with this. There can be significant inter-test variability, and hCG can make a nontrivial contribution to total testosterone. Regarding free T, if you use equilibrium dialysis or LC/MS to test then results [I]might[/I] be comparable between labs. Otherwise, forget it. Simpler is to always measure SHBG with total T and calculate free T. These numbers should be fairly consistent between labs. [/QUOTE]
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Testosterone Replacement, Low T, HCG, & Beyond
Blood Test Discussion
SubQ might not doing it for me
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