Understanding Bio T and Free T

[etma]

I am curious as the difference in Bio vs Free T? Is one more important than the other or are they one in the same? I am just wondering about my numbers. the both seem good at the higher end of normal but is one more important than the other? Also is my SHBG a good number? My numbers are as follows
TT 881 (270-1070)
FT 155 (48.2-169.6)
Bio T 357.2 (113-397
SHBG 47.8 (17.3-65.8)

 

[Spunkey71]

I have always been under the impression that Free T and Bio avail T are the same thing.

 

[etma]

If they are the same then why two different measurements with two very different numbers?

 

[Mprtz]

Free T is T not bound to SHBG or Albumin
Bioavailable T is T not bound to SHBG

 

[Alpin]

I've had LOW Free T and almost mid range Bio Avail. T on just E3D ADEX 0.25 mg....
Low normal TT....

 

[legitsrs]

This should explain it clearly.

 

[Alpin]

Nice graph....
but bottom part is cut off, theres more to it but can't make it out.