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Testosterone Replacement, Low T, HCG, & Beyond
Testosterone Basics & Questions
Help with bloodwork, undetectable E2?
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<blockquote data-quote="Cataceous" data-source="post: 161476" data-attributes="member: 38109"><p>The short answer is yes, the non-sensitive test is particularly good for relative measurements, even if you haven't figured out the systematic error. Ideally you'd get a few simultaneous results to quantify the error in the non-sensitive test. We just did something similar for [USER=15043]@Gman86[/USER] <a href="https://www.excelmale.com/forum/threads/testosterone-propionate-for-trt.17712/post-161380" target="_blank">here</a> (actually using free estradiol as the standard) and found a very consistent 16% elevation in the non-sensitive test. Even without this correction the non-sensitive data produce better results for him. His data and mine have shown that the sensitive test is capable of randomly throwing out completely wrong numbers. This is in line with the temperamental nature of mass spectrometry equipment. It takes skilled operators doing everything right. Whereas the non-sensitive immunoassay tests are simple and pretty much idiot-proof—but have more cross-reactivity with other substances.</p></blockquote><p></p>
[QUOTE="Cataceous, post: 161476, member: 38109"] The short answer is yes, the non-sensitive test is particularly good for relative measurements, even if you haven't figured out the systematic error. Ideally you'd get a few simultaneous results to quantify the error in the non-sensitive test. We just did something similar for [USER=15043]@Gman86[/USER] [URL='https://www.excelmale.com/forum/threads/testosterone-propionate-for-trt.17712/post-161380']here[/URL] (actually using free estradiol as the standard) and found a very consistent 16% elevation in the non-sensitive test. Even without this correction the non-sensitive data produce better results for him. His data and mine have shown that the sensitive test is capable of randomly throwing out completely wrong numbers. This is in line with the temperamental nature of mass spectrometry equipment. It takes skilled operators doing everything right. Whereas the non-sensitive immunoassay tests are simple and pretty much idiot-proof—but have more cross-reactivity with other substances. [/QUOTE]
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Testosterone Replacement, Low T, HCG, & Beyond
Testosterone Basics & Questions
Help with bloodwork, undetectable E2?
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