ExcelMale
Menu
Home
What's new
Latest activity
Forums
New posts
Search forums
What's new
New posts
Latest activity
Videos
Lab Tests
Doctor Finder
Buy Books
About Us
Men’s Health Coaching
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Navigation
Install the app
Install
More options
Contact us
Close Menu
Forums
Testosterone Replacement, Low T, HCG, & Beyond
Blood Test Discussion
New Member is Canada w/ pre-TRT bloodwork
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="madman" data-source="post: 115481" data-attributes="member: 13851"><p>You are concerned with your free testosterone results which is understandable as even though it is good to know ones TT level, FT is what really matters as it is the unbound active fraction of testosterone.</p><p></p><p>First thing that stands out is looking at your lab results from Labcorp your TT levels are descent 557 ng/dl (range 264-916) and your FT 15.9 pg/ml is just below mid-normal of the reference range (range 9.3-26.5) as 17.6 would be the mean (mid-normal) of the reference range so your FT is average but not low by any means.</p><p></p><p>Even when one converts Canadian units for TT or free t to the US units and wants to compare Canadian vs US labs it is not accurate as the testing methods used by different labs for TT and free t are usually different and depending on the testing methods for TT and free t certain assays are more accurate than others.</p><p></p><p>Regarding Total Testosterone at most labs in Canada they use the automated immunoassay which is not as accurate as the liquid chromatography tandem-mass spectrometry (LC-MS/MS) which is used at certain labs in the US and Labcorp offers it which you may have had done when your TT was tested and more than likely your FT was the direct assay.</p><p></p><p>Regarding free testosterone at most labs in Canada they use the calculated free t as oppose to the direct or equilibrium dialysis which is offered at most US labs mind you calculated free t is also used.</p><p></p><p>Than to top it off lab reference ranges are different in Canada and the US and there is also variance in reference ranges between labs.</p><p></p><p>Two of the biggest labs in Ontario are Lifelabs and Dynacare and there is a difference between reference ranges for TT,FT,SHBG,E2 and so on.</p><p></p><p>Two of the biggest labs in the US are Labcorp and Quest and there is also a difference in reference ranges.</p><p></p><p>Not sure which province you are located but when looking over your Canadian labs (1st set) your TT is definitely on the lower end at 9.51 nmol/L (range 5.8-28) but the more important aspect is your FT and the testing method FIA (free androgen index) used is unreliable and it is surprising that the calculated free T method was not used as it is the one to be used when testing FT in Canada as most labs do not use equliibrium dialysis considered the (gold standard and reference method against which other methods are compared) or ultracentrifugation which is (comparable to equilibrium dialysis).</p><p></p><p><a href="http://canjurol.com/article.php?ID=2382" target="_blank">http://canjurol.com/article.php?ID=2382</a></p><p></p><p>..........</p><p></p><p>Looking at your Canadian labs (2nd set) your TT is descent at 16 nmol/L (range 5.8-28)</p><p></p><p></p><p>If anything you should have your labs done again for FT using the calculated method to get a more accurate picture of where your FT truly sits and even than also retest TT as you were 9.51 nmol/L the first test and 16 nmol/L the second test.....did you have your blood work done fasted and in the morning (7-10 am) as it is critical due to the natural circadian rhythm of a health young males testosterone levels which peak in the early am and than slowly decline throughout the afternoon/evening.</p><p></p><p>You can easily find out your FT (calculated method) as long as you know your TT and SHBG levels using the Free & Bioavailable Testosterone Calculator online.</p><p></p><p>Most men ideally need their FT to be in the 2-3% range.</p><p></p><p>If I use your TT (1st set Canadian labs) and your SHBG numbers in the calculator your FT is 1.92% and your BT is 45% <a href="http://www.issam.ch/freetesto.htm" target="_blank">http://www.issam.ch/freetesto.htm</a></p><p></p><p>.........................................................................................................................................................................</p><p></p><p>If I use your TT (2nd set Canadian labs) and your SHBG numbers in the calculator your FT is 2.04% and your BT is 47.9% <a href="http://www.issam.ch/freetesto.htm" target="_blank">http://www.issam.ch/freetesto.htm</a></p><p><a href="http://www.issam.ch/freetesto.htm" target="_blank"></a></p><p><a href="http://www.issam.ch/freetesto.htm" target="_blank"></a></p><p><a href="http://www.issam.ch/freetesto.htm" target="_blank"></a></p><p><a href="http://www.issam.ch/freetesto.htm" target="_blank"></a></p></blockquote><p></p>
[QUOTE="madman, post: 115481, member: 13851"] You are concerned with your free testosterone results which is understandable as even though it is good to know ones TT level, FT is what really matters as it is the unbound active fraction of testosterone. First thing that stands out is looking at your lab results from Labcorp your TT levels are descent 557 ng/dl (range 264-916) and your FT 15.9 pg/ml is just below mid-normal of the reference range (range 9.3-26.5) as 17.6 would be the mean (mid-normal) of the reference range so your FT is average but not low by any means. Even when one converts Canadian units for TT or free t to the US units and wants to compare Canadian vs US labs it is not accurate as the testing methods used by different labs for TT and free t are usually different and depending on the testing methods for TT and free t certain assays are more accurate than others. Regarding Total Testosterone at most labs in Canada they use the automated immunoassay which is not as accurate as the liquid chromatography tandem-mass spectrometry (LC-MS/MS) which is used at certain labs in the US and Labcorp offers it which you may have had done when your TT was tested and more than likely your FT was the direct assay. Regarding free testosterone at most labs in Canada they use the calculated free t as oppose to the direct or equilibrium dialysis which is offered at most US labs mind you calculated free t is also used. Than to top it off lab reference ranges are different in Canada and the US and there is also variance in reference ranges between labs. Two of the biggest labs in Ontario are Lifelabs and Dynacare and there is a difference between reference ranges for TT,FT,SHBG,E2 and so on. Two of the biggest labs in the US are Labcorp and Quest and there is also a difference in reference ranges. Not sure which province you are located but when looking over your Canadian labs (1st set) your TT is definitely on the lower end at 9.51 nmol/L (range 5.8-28) but the more important aspect is your FT and the testing method FIA (free androgen index) used is unreliable and it is surprising that the calculated free T method was not used as it is the one to be used when testing FT in Canada as most labs do not use equliibrium dialysis considered the (gold standard and reference method against which other methods are compared) or ultracentrifugation which is (comparable to equilibrium dialysis). [URL]http://canjurol.com/article.php?ID=2382[/URL] .......... Looking at your Canadian labs (2nd set) your TT is descent at 16 nmol/L (range 5.8-28) If anything you should have your labs done again for FT using the calculated method to get a more accurate picture of where your FT truly sits and even than also retest TT as you were 9.51 nmol/L the first test and 16 nmol/L the second test.....did you have your blood work done fasted and in the morning (7-10 am) as it is critical due to the natural circadian rhythm of a health young males testosterone levels which peak in the early am and than slowly decline throughout the afternoon/evening. You can easily find out your FT (calculated method) as long as you know your TT and SHBG levels using the Free & Bioavailable Testosterone Calculator online. Most men ideally need their FT to be in the 2-3% range. If I use your TT (1st set Canadian labs) and your SHBG numbers in the calculator your FT is 1.92% and your BT is 45% [URL]http://www.issam.ch/freetesto.htm[/URL] ......................................................................................................................................................................... If I use your TT (2nd set Canadian labs) and your SHBG numbers in the calculator your FT is 2.04% and your BT is 47.9% [URL="http://www.issam.ch/freetesto.htm"]http://www.issam.ch/freetesto.htm [/URL] [/QUOTE]
Insert quotes…
Verification
Post reply
Share this page
Facebook
Twitter
Reddit
Pinterest
Tumblr
WhatsApp
Email
Share
Link
Sponsors
Forums
Testosterone Replacement, Low T, HCG, & Beyond
Blood Test Discussion
New Member is Canada w/ pre-TRT bloodwork
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more…
Top