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Testosterone Replacement, Low T, HCG, & Beyond
Testosterone Basics & Questions
Testosterone assay experts... puzzling results
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<blockquote data-quote="Cataceous" data-source="post: 254034" data-attributes="member: 38109"><p>I'm not sure what to make of it. The Labcorp total testosterone assay is definitely standardized. I'm not sure about the Quest assay. Quest is <a href="https://www.cdc.gov/labstandards/csp/pdf/hs/cdc_certified_testosterone_assays-508.pdf" target="_blank">now listed</a> as having a certified assay, but it's unclear to me if Quest and Med Fusion are interchangeable. Of course having your assay standardized doesn't preclude screwing up individual tests. Do you have an idea of what your SHBG level is? Calculated free testosterone would be an interesting point of comparison.</p></blockquote><p></p>
[QUOTE="Cataceous, post: 254034, member: 38109"] I'm not sure what to make of it. The Labcorp total testosterone assay is definitely standardized. I'm not sure about the Quest assay. Quest is [URL='https://www.cdc.gov/labstandards/csp/pdf/hs/cdc_certified_testosterone_assays-508.pdf']now listed[/URL] as having a certified assay, but it's unclear to me if Quest and Med Fusion are interchangeable. Of course having your assay standardized doesn't preclude screwing up individual tests. Do you have an idea of what your SHBG level is? Calculated free testosterone would be an interesting point of comparison. [/QUOTE]
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Testosterone Replacement, Low T, HCG, & Beyond
Testosterone Basics & Questions
Testosterone assay experts... puzzling results
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