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Testosterone Replacement, Low T, HCG, & Beyond
Blood Test Discussion
First blood work after adding Nandrolone
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<blockquote data-quote="madman" data-source="post: 197128" data-attributes="member: 13851"><p>Nandrolone has a very low affinity for SHBG, about 5% of that of T and 1% of that of DHT.</p><p></p><p>If anything nandrolone has a stronger binding affinity to the AR and can displace T.</p><p></p><p>What seems odd on 1st set labs (T+ND) that you did not test TT (LC/MS-MS) as you stated (are you sure?) because FT looks to have been tested using one of the most accurate assays Equilibrium Ultrafiltration judging by the reference range you posted 5-21.</p><p></p><p>This is the same reference range (5.00-21.00 ng/dL) used on Labcorps FT (Equilibrium Ultrafiltration) assay with TT (LC/MS-MS).</p><p></p><p>[URL unfurl="true"]https://www.labcorp.com/tests/070038/testosterone-free-equilibrium-ultrafiltration-with-total-testosterone-lc-ms-ms[/URL]</p><p>[ATTACH=full]13229[/ATTACH]</p><p></p><p></p><p>To top it off that if this was the case then it is pointless to try to even compare FT results on the 1st set of labs (T+ND protocol) with FT results on the 2nd set of labs (T only protocol) because FT was tested using the piss poor direct immunoassay judging by the reference range you posted 8.7-25.1.</p><p></p><p>This is the same reference range (8.7-25.1 pg/mL) used on Labcorps FT Direct analog enzyme immunoassay (EIA).</p><p>[ATTACH=full]13230[/ATTACH]</p><p></p><p></p><p></p><p>Now the s**t kicker here is if your 1st set of labs (T+ND) was tested using the most accurate assays for TT/FT then you should not get an inflated result when using nandrolone.</p><p></p><p>Keep in mind that even on a T only protocol with a TT 1500 ng/dL one could easily have an absurdly high FT (accurate assays) not too far off from the results you posted in the first set of labs (if your TT/FT was tested using the most accurate assays).</p><p></p><p>To me judging by the reference range 5-21 posted in your 1st set of labs your FT was done by Equilibrium Ultrafiltration which would mean TT was LC/MS-MS.</p></blockquote><p></p>
[QUOTE="madman, post: 197128, member: 13851"] Nandrolone has a very low affinity for SHBG, about 5% of that of T and 1% of that of DHT. If anything nandrolone has a stronger binding affinity to the AR and can displace T. What seems odd on 1st set labs (T+ND) that you did not test TT (LC/MS-MS) as you stated (are you sure?) because FT looks to have been tested using one of the most accurate assays Equilibrium Ultrafiltration judging by the reference range you posted 5-21. This is the same reference range (5.00-21.00 ng/dL) used on Labcorps FT (Equilibrium Ultrafiltration) assay with TT (LC/MS-MS). [URL unfurl="true"]https://www.labcorp.com/tests/070038/testosterone-free-equilibrium-ultrafiltration-with-total-testosterone-lc-ms-ms[/URL] [ATTACH type="full"]13229[/ATTACH] To top it off that if this was the case then it is pointless to try to even compare FT results on the 1st set of labs (T+ND protocol) with FT results on the 2nd set of labs (T only protocol) because FT was tested using the piss poor direct immunoassay judging by the reference range you posted 8.7-25.1. This is the same reference range (8.7-25.1 pg/mL) used on Labcorps FT Direct analog enzyme immunoassay (EIA). [ATTACH type="full"]13230[/ATTACH] Now the s**t kicker here is if your 1st set of labs (T+ND) was tested using the most accurate assays for TT/FT then you should not get an inflated result when using nandrolone. Keep in mind that even on a T only protocol with a TT 1500 ng/dL one could easily have an absurdly high FT (accurate assays) not too far off from the results you posted in the first set of labs (if your TT/FT was tested using the most accurate assays). To me judging by the reference range 5-21 posted in your 1st set of labs your FT was done by Equilibrium Ultrafiltration which would mean TT was LC/MS-MS. [/QUOTE]
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Testosterone Replacement, Low T, HCG, & Beyond
Blood Test Discussion
First blood work after adding Nandrolone
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