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
Wildly Different E2 Numbers - LabCorp vs. Quest
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="blackebob" data-source="post: 126094" data-attributes="member: 17268"><p><span style="font-size: 22px"><strong>hy Do Results Differ From Lab To Lab?</strong></span></p><p>Another question frequently asked is why hormone results from LabCorp are different than results from Quest for the same hormone test.</p><p></p><p>At Life Extension, we often encounter customers who are concerned because they received a hormone result from Quest that their doctor ordered, and it doesn’t match the result from Life Extension using LabCorp.</p><p></p><p>What most people don’t realize is that there is no standardization between commercial blood labs for hormone testing. It is a common assumption that all labs are testing hormones the exact same way and that the numbers should be the same between labs. Unfortunately, this is not the case. Because different labs use different methods, the results are not directly comparable. And since the methods, the reagents, and the equipment are all different, the number you get from one lab may not be comparable to the number from another lab—even though the name of the test is the same.</p><p></p><p>This is so frustratingly common that when I read a study on hormone testing, the first thing I do is go to the “Materials and Methods” section to see which lab did the test and what methodology was used. Only then can I put the hormone levels reported in the study into the proper perspective. This lack of standardization between labs makes it very frustrating for clinicians and researchers alike.</p><p></p><p>To make matters worse, there are also multiple ways to test the same hormone within each lab. Testosterone is the classic example. The two primary methods used to assess testosterone in the blood are an <em>immunoassay methodology</em> or <em>liquid chromatography</em> coupled with <em>tandem mass spectrometry</em>. This situation leads to a lot of confusion among patients and doctors alike.</p><p></p><p><strong>The best solution is to stick with the same lab and use the same methodology each time.</strong></p><p></p><p><strong>Stolen from the web.</strong></p></blockquote><p></p>
[QUOTE="blackebob, post: 126094, member: 17268"] [SIZE=22px][B]hy Do Results Differ From Lab To Lab?[/B][/SIZE] Another question frequently asked is why hormone results from LabCorp are different than results from Quest for the same hormone test. At Life Extension, we often encounter customers who are concerned because they received a hormone result from Quest that their doctor ordered, and it doesn’t match the result from Life Extension using LabCorp. What most people don’t realize is that there is no standardization between commercial blood labs for hormone testing. It is a common assumption that all labs are testing hormones the exact same way and that the numbers should be the same between labs. Unfortunately, this is not the case. Because different labs use different methods, the results are not directly comparable. And since the methods, the reagents, and the equipment are all different, the number you get from one lab may not be comparable to the number from another lab—even though the name of the test is the same. This is so frustratingly common that when I read a study on hormone testing, the first thing I do is go to the “Materials and Methods” section to see which lab did the test and what methodology was used. Only then can I put the hormone levels reported in the study into the proper perspective. This lack of standardization between labs makes it very frustrating for clinicians and researchers alike. To make matters worse, there are also multiple ways to test the same hormone within each lab. Testosterone is the classic example. The two primary methods used to assess testosterone in the blood are an [I]immunoassay methodology[/I] or [I]liquid chromatography[/I] coupled with [I]tandem mass spectrometry[/I]. This situation leads to a lot of confusion among patients and doctors alike. [B]The best solution is to stick with the same lab and use the same methodology each time.[/B] [B]Stolen from the web.[/B] [/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
Wildly Different E2 Numbers - LabCorp vs. Quest
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