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My blood test results. Are they in-line with LEF guidelines?

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 Posted 7/7/2013 5:02:16 PM
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This message is primarily directed toward the LEF. 

I recently had blood tests done from my doctor during my annual physical exam, see link:

Link to my blood test results

I'm a bit confused with my testosterone level. My free testosterone is 36.4 pg/ml.  However the standard reference range for free testosterone from my lab results (see link above) is 47 - 244 pg/ml.  So according to the lab range it is flagged for being low. My doctor is willing to prescribe testosterone replacement.

From the LEF article, Why Estrogen Balance is Critical to Aging Men, the ideal free serum testosterone levels for most aging men recommended is 20-25 pg/ml.  So according to LEF my free testosterone is a bit high.

My question is, who is right? Is my free testosterone low, high, or normal? Is the LEF recommended range out of date based on new data? Based on LEF recomendation and my lab range, LEF is suggesting that I maintain lower free testosterone than my lab suggests.

Let me add that my doctor is part of a new, modern, high tech, state-of-art medical center, and highly regarded.

As a side note from my tests,

The good:

PSA is low: .0.32 ng/mL (on a scale of 0.00 - 4.00)
Overall CRP is low: <0.40 mg/dL (on a scale of 0.00 - 1.00)
Cardiac CRP: is low: <0.100 mg/dL (on a scale of .1 - 1.0)
TSH / Thyroid is normal: 2.12 ulU/mL (on a scale of .46 - 4.68)
Total HDL Cholesterol is normal: 46.0 (on a scale of 40 - 60 mg/dL)

The 'needs attention' (This is diet related which I can correct):

Total Cholesterol is high: 239 mg/dL (on a scale of 0 - 200)
Triglycerides direct are high: 234 mg/dL (on a scale of 0 - 150)
LDL direct is high: 140 mg/dL (on a scale of 31.00 - 130.00)
BUN is high: 20 mg/dL ( on a scale of 7 - 17 mg/dL)

So, if LEF can answer my question about testosterone, I would appreciate it.

-Tom


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 Posted 7/8/2013 4:17:36 AM
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Life Extension has an advisor department that exists to answer members' questions, including blood test result commentary.  You may call them at 1 800 226 2370 or email advisory@lifeextension.com

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 Posted 7/8/2013 5:30:51 AM
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I will email them and see. My other question is, is there a published list of the reference ranges that life extension suggests for each blood test? The other question is where is life extension getting there recommended ranges from?

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 Posted 7/8/2013 5:38:18 AM
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Life Extension suggests optimal ranges that are frequently updated.  They are arrived at as a result of evaluation of studies and in some cases by evaluation of the blood test results of Life Extension members. 

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 Posted 7/8/2013 7:05:28 AM
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Can you point me to a current list of LEF optimal ranges? 

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 Posted 7/8/2013 7:12:40 AM
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It doesn't appear on the website.

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 Posted 7/8/2013 8:39:47 AM
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Please explain exacly where and how one can get a list of LEF recomended optimal blood test ranges? 

Thank You!!

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 Posted 7/8/2013 9:24:09 AM
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I got this list of LEF's ranges from an Advisor a couple of weeks ago - Blood Test Ranges  Not everything has an 'optimal' range. And I don't see where there is a date of when the optimal range was established.

And here is an interesting article on T with some ranges by age grouping, with links to reference studies.
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 Posted 7/8/2013 9:32:12 AM
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Life Extension's Advisor department has the information and can be called at 1 800 226 2370. 

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 Posted 7/9/2013 6:19:32 AM
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Don,

Thanks for the links. Especially the one on testosterone levels. It makes a lot of sense, the levels that the lab provides is compared to what? -- Yes exactly, they're comprised of a list of all types of men with all types of health issues healthy and non healthy. So really it's hard to tell what each individual persons testosterone level should be for their health status.

Additionally it's been said that a male testosterone level should be kept at about the age a 25 year old. But I bet, if you took a hundred twenty five yeay old men and tested their testosterone levels you'd  have a wide range of levels. Is it even possible or practical to have a man twice that old or 3 times that old with a testosterone level of a 20-something  year old man?  There are complications for having too high of a testosterone level.

Based upon the LEF recommendation from that article, they're not actually recommending a testosterone level of a 20-something year old man because obviously that level is very low, on the low side compared to the range for males. in fact the article specifically stated testosterone levels optimal for the 'aging' man.

So where did this idea of keeping a man's testosterone level of the age of a 20-something come from? I hear a lot of people proclaiming that, but that's not what I understand LEF is promoting.

-Tom.

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