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Testosterone Replacement, Low T, HCG, & Beyond
Testosterone Basics & Questions
New Member Question Re "Standard Range=86.98 - 780.10 ng/dL"?
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<blockquote data-quote="Mr. Clark" data-source="post: 199313" data-attributes="member: 41940"><p>My doc referred me to an endocronologist. The endo said I needed to get blood drawn in the morning when T is highest (for the prior T test the blood was drawn in the afternoon). </p><p></p><p>After getting blood drawn in the morning, the T level was somewhat higher. The endo stated: " The total testosterone was 180.50, sex hormone binding globulin 15.50, and albumin 4.3. These calculate to a bioavailable testosterone of 116 (normal 50 to 190) and a free testosterone of 4.93 (normal 3.87 to 14.7). The total testosterone appears low only because the sex hormone binding globulin is low, which is a variant of normal. The bioavailable and free testosterone are normal. Therefore, there is no need to start testosterone therapy at this time." </p><p></p><p>The numbers still seem a bit low to me, and the normal ranges he lists also seem low. For example, Harvard lists the following for men ages 50-59:</p><table class='post-table ' style='width: 100%'><tr><td ><p>Total testosterone</p></td><td ><p> <br /> Free testosterone</p></td><td ><p> <br /> Bioavailable testosterone</p></td></tr></table> </p><table class='post-table ' style='width: 100%'><tr><td ><p>215–878</p></td><td ><p> <br /> 4.2–22.2</p></td><td ><p> <br /> 80–420</p></td></tr></table> [URL unfurl="true"]https://www.health.harvard.edu/newsletter_article/testosterone_aging_and_the_mind[/URL]</p><p></p><p>What strikes me as especially odd is that normal bioavailable and free T ranges cited by the Endo are significantly lower than in the Harvard article. </p><p></p><p>It appears to me he is using the same numbers as the Mayo Clinic:</p><p></p><p>[URL unfurl="true"]https://www.mayocliniclabs.com/test-catalog/Clinical+and+Interpretive/83686[/URL]</p><p></p><p>I talked to the endo briefly about lethargy, lack of libido, etc. but he seems to think this is just natural aging. I can understand that to a point, but the lack of libido is causing issues with my wife and this has become a quality of life issue for me (admitedly I don't know for sure if low T is causing the lethargy and libido issues).</p><p></p><p>My Free T4 is 1.09 ng/dL so I doubt that the lethargy is a result of a thyroid problem.</p><p></p><p>Any thoughts would be appreciated.</p></blockquote><p></p>
[QUOTE="Mr. Clark, post: 199313, member: 41940"] My doc referred me to an endocronologist. The endo said I needed to get blood drawn in the morning when T is highest (for the prior T test the blood was drawn in the afternoon). After getting blood drawn in the morning, the T level was somewhat higher. The endo stated: " The total testosterone was 180.50, sex hormone binding globulin 15.50, and albumin 4.3. These calculate to a bioavailable testosterone of 116 (normal 50 to 190) and a free testosterone of 4.93 (normal 3.87 to 14.7). The total testosterone appears low only because the sex hormone binding globulin is low, which is a variant of normal. The bioavailable and free testosterone are normal. Therefore, there is no need to start testosterone therapy at this time." The numbers still seem a bit low to me, and the normal ranges he lists also seem low. For example, Harvard lists the following for men ages 50-59: [TABLE][TR][TD] Total testosterone [/TD] [TD] Free testosterone [/TD] [TD] Bioavailable testosterone [/TD][/TR][/TABLE] [TABLE][TR][TD] 215–878 [/TD] [TD] 4.2–22.2 [/TD] [TD] 80–420 [/TD][/TR][/TABLE] [URL unfurl="true"]https://www.health.harvard.edu/newsletter_article/testosterone_aging_and_the_mind[/URL] What strikes me as especially odd is that normal bioavailable and free T ranges cited by the Endo are significantly lower than in the Harvard article. It appears to me he is using the same numbers as the Mayo Clinic: [URL unfurl="true"]https://www.mayocliniclabs.com/test-catalog/Clinical+and+Interpretive/83686[/URL] I talked to the endo briefly about lethargy, lack of libido, etc. but he seems to think this is just natural aging. I can understand that to a point, but the lack of libido is causing issues with my wife and this has become a quality of life issue for me (admitedly I don't know for sure if low T is causing the lethargy and libido issues). My Free T4 is 1.09 ng/dL so I doubt that the lethargy is a result of a thyroid problem. Any thoughts would be appreciated. [/QUOTE]
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Testosterone Replacement, Low T, HCG, & Beyond
Testosterone Basics & Questions
New Member Question Re "Standard Range=86.98 - 780.10 ng/dL"?
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