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Testosterone Replacement, Low T, HCG, & Beyond
Blood Test Discussion
Kidney Function 101
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<blockquote data-quote="Jones" data-source="post: 46465" data-attributes="member: 13749"><p>What is your muscle mass like? Lab range values are simply based on local averages of average "healthy" adult levels of each blood test. Creatinine (not to be confused with creatine) is a reflection of muscle metabolism. Therefore, those with higher than average muscle mass will tend to have higher creatinine lab values and is not necessarily pathological. I would have your doctor run a Cystatin-C, which is less influenced by muscle mass. I would discuss this with your doctor and see if there is still concern. Hope this is helpful and good luck to you.</p><p></p><p>Here is a peer reviewed discussion of this: </p><p>(wouldn't let me post links yet, insert the pub med id number into the pubmed.com search box)</p><p>PubMed Id "PMC2390952"</p><p></p><p></p><p>"This study showed that muscle mass affects serum and urinary creatinine but not cystatin C; therefore, the use of cystatin may represent a more adequate alternative to assess renal function in healthy individuals with higher muscle mass and potential mild kidney impairment."</p></blockquote><p></p>
[QUOTE="Jones, post: 46465, member: 13749"] What is your muscle mass like? Lab range values are simply based on local averages of average "healthy" adult levels of each blood test. Creatinine (not to be confused with creatine) is a reflection of muscle metabolism. Therefore, those with higher than average muscle mass will tend to have higher creatinine lab values and is not necessarily pathological. I would have your doctor run a Cystatin-C, which is less influenced by muscle mass. I would discuss this with your doctor and see if there is still concern. Hope this is helpful and good luck to you. Here is a peer reviewed discussion of this: (wouldn't let me post links yet, insert the pub med id number into the pubmed.com search box) PubMed Id "PMC2390952" "This study showed that muscle mass affects serum and urinary creatinine but not cystatin C; therefore, the use of cystatin may represent a more adequate alternative to assess renal function in healthy individuals with higher muscle mass and potential mild kidney impairment." [/QUOTE]
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Testosterone Replacement, Low T, HCG, & Beyond
Blood Test Discussion
Kidney Function 101
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