Free Testosterone in pmol/L?

[solo47]

Just got my free testosterone measured in a bloodtest. I was apparently at 42.8 pmol/L (23-80). Can't find anything on the Web that explains this measurement (or at least clearly explains it). Doc says I'm in the "normal" range, but nothing beyond that. Can anyone explain my test results to me? How is pmol/L different from nmol/L?

Solo

[JanSz]

Originally Posted by solo47

Just got my free testosterone measured in a bloodtest. I was apparently at 42.8 pmol/L (23-80). Can't find anything on the Web that explains this measurement (or at least clearly explains it). Doc says I'm in the "normal" range, but nothing beyond that. Can anyone explain my test results to me? How is pmol/L different from nmol/L?

Solo

I keep data on this topic Here;
Jan's BloodTest April13/2007 - Page 2

post #40

Free & Bioavailable Testosterone calculator
Conventional units - SI units
Chemistry Conversion
Dr Shippen Chart post #41


pico nano micro milli
Calculations: Order of magnitudes - Prefixes all powers - kilo Mega Nano Tera femto Atto peta exa prefix milli micro nano pico F A P E - sengpielaudio


1000 pico = nano n:
1000 nano = micro µ:
1000 micro =1 milli m:

[BrianEE93]

Are you sure the units were pmol/L? A pico is 1000x smaller than a nano so this would be .0428nmol/L.

[solo47]

Originally Posted by BrianEE93

Are you sure the units were pmol/L? A pico is 1000x smaller than a nano so this would be .0428nmol/L.

So it states right before me: 42.8 pmol/L (23-80). Doc says "mid-range", so if he's right that would surely be 0.428 nmol/L. Don't know if the "p" stands for "pico" and don't why the decimal only moves 100X.

Solo

[BrianEE93]

Originally Posted by solo47

So it states right before me: 42.8 pmol/L (23-80). Doc says "mid-range", so if he's right that would surely be 0.428 nmol/L. Don't know if the "p" stands for "pico" and don't why the decimal only moves 100X.

Solo

The decimal would move 3 places so 0.0428. That just doesn't sound right. I am not saying you are wrong. It just seems weird. That is only 1.23ng/dL. You might want to call on this one Tuesday.

[solo47]

Originally Posted by BrianEE93

The decimal would move 3 places so 0.0428. That just doesn't sound right. I am not saying you are wrong. It just seems weird. That is only 1.23ng/dL. You might want to call on this one Tuesday.

Maybe the doctor's office erred and it should have been 42.8 pmol/dL?

Solo