Testosterone free direct test

[Zooka15]

How reliable is this number? Mine always seems to have a wide variance on all my tests.

 

[CoastWatcher]

A free testosterone value derived through calculation is widely accepted as accurate. This thread will help you determine yours.

https://www.excelmale.com/forum/showthread.php?3588-Calculating-Free-Bioavailable-Testosterone

 

[Vettester Chris]

Totally agree with CW. Sadly, too many people don't even pay any attention to it, and for testosterone, it's (Free) where the rubber meets the road!

OP, you might see the variances as you noted, but do us a favor and take your Free Test and divide it by your Total Serum on any of your lab results (FT/TS = FT%). You should find that your actual percentage of Free Testosterone is fairly consistent. "x" percentage is the amount of actual bio available testosterone that is not bound by SHBG or albumin.

 

[Zooka15]

So is the correct test ? "free direct with total testosterone " this is the one I usually get but have had one that stated calculated free.