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Testosterone Replacement, Low T, HCG, & Beyond
Blood Test Discussion
Slightly elevated creatinine
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<blockquote data-quote="hotdog" data-source="post: 85705" data-attributes="member: 12652"><p>I am starting to believe creatinine is a poor first choice for measuring renal function if you work out and drink protein shakes.</p><p></p><p>My creatinine was 1.2 in 2002 and 1.2 in 2017 yet my PCP said that means I am virtually stage 2 kidney disease. What my PCP doesn't see is that my creatinine drops to 0.97 if I miss the gym for a month (no muscle breakdown happening).</p><p>More importantly my Cystatin-C is at 0.79 mg/L (0.53-0.95) and again has been the same value for years (age 58). The Cystastin-C test is not impacted by muscle mass or diet and is also a test that measures the ability of the kidneys to remove waste. I noticed that Nelson is planning on introducing the test in DiscountedLabs.</p><p></p><p>The National Kidney Foundation says "You are overweight, elderly or have lots of muscle (such as a body builder). Cystatin C-based estimates for GFR are believed to be less influenced by muscle mass or diet than creatinine-based estimates." (<a href="https://www.kidney.org/atoz/content/cystatinC" target="_blank">https://www.kidney.org/atoz/content/cystatinC</a>).</p><p></p><p>A good discussion of Cystatin-C test can be found here <a href="http://www.lifeextension.com/Protocols/Kidney-Urinary/Kidney-Health/Page-06" target="_blank">http://www.lifeextension.com/Protocols/Kidney-Urinary/Kidney-Health/Page-06</a></p><p></p><p>One final thing, if you ever have to take a course of Bactrim antibiotics don't have your Creatinine test done or your PCP will panic. It adds 0.4-0.5 mg/dL to your result so HealthMan we'd be talking 1.78 for you! (<a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2664589/" target="_blank">https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2664589/</a> - see number 2)</p><p></p><p>They say the Bactrim inhibits clearance but is reversible after you stop taking it and my results concur. But be aware!</p></blockquote><p></p>
[QUOTE="hotdog, post: 85705, member: 12652"] I am starting to believe creatinine is a poor first choice for measuring renal function if you work out and drink protein shakes. My creatinine was 1.2 in 2002 and 1.2 in 2017 yet my PCP said that means I am virtually stage 2 kidney disease. What my PCP doesn't see is that my creatinine drops to 0.97 if I miss the gym for a month (no muscle breakdown happening). More importantly my Cystatin-C is at 0.79 mg/L (0.53-0.95) and again has been the same value for years (age 58). The Cystastin-C test is not impacted by muscle mass or diet and is also a test that measures the ability of the kidneys to remove waste. I noticed that Nelson is planning on introducing the test in DiscountedLabs. The National Kidney Foundation says "You are overweight, elderly or have lots of muscle (such as a body builder). Cystatin C-based estimates for GFR are believed to be less influenced by muscle mass or diet than creatinine-based estimates." ([URL]https://www.kidney.org/atoz/content/cystatinC[/URL]). A good discussion of Cystatin-C test can be found here [URL]http://www.lifeextension.com/Protocols/Kidney-Urinary/Kidney-Health/Page-06[/URL] One final thing, if you ever have to take a course of Bactrim antibiotics don't have your Creatinine test done or your PCP will panic. It adds 0.4-0.5 mg/dL to your result so HealthMan we'd be talking 1.78 for you! ([URL]https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2664589/[/URL] - see number 2) They say the Bactrim inhibits clearance but is reversible after you stop taking it and my results concur. But be aware! [/QUOTE]
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Testosterone Replacement, Low T, HCG, & Beyond
Blood Test Discussion
Slightly elevated creatinine
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