Anyone in Canada using Life Labs for blood work?

Ardoc

Member
I just received blood work results from Life Labs showing the range for free T has changed dramatically.
it shows the range as 179 - 475 pmol/l my result is 591
previous results had @ 25 - 80 pmol/l my result was 79

it seems odd the the range would change like that? I triple checked and the units (pmol/l) has NOT changed.

i have booked an appointment through Discounted Labs for September when I am in the USA but this does not seem correct.

I will be discussing with my doc soon but any insight or input would be greatly appreciated!
 
Having seen Life Labs, and their pre-merger identity, CML, gyrate the free testosterone values for over a year,, I simply don't draw blood with them. I am in the States regularly and monitor my TRT through DiscountedLabs.com (as you are about to do). If I ask her, my doctor will arrange a blood draw at the hospital.

Free testosterone values are notoriously hard to quantify and report. A lot of literature exists on the challenges faced in obtaining and evaluating levels.
 
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Thanks for the reply CW. I have so far only booked the special from Discounted Labs that was recently offered here ($139) I was just trying to get a sensitive E2 but am now glad it also has Free T as well.
In your opinion should I be sceptical of the accuracy of all results with LL? Or is this a unique one because of the difficult nature of the test as you describe?
 
Thanks for the reply CW. I have so far only booked the special from Discounted Labs that was recently offered here ($139) I was just trying to get a sensitive E2 but am now glad it also has Free T as well.
In your opinion should I be sceptical of the accuracy of all results with LL? Or is this a unique one because of the difficult nature of the test as you describe?

My other TRT-related values from LL match well with the US draws. No issues there. Don't be surprised if your doctor is confused when you present the issues for discussion.
 
With Life Labs I have found out that they will use age based ranges as well as regional ranges (look up BC Life Labs and compare it to the Ontario ranges). I suspect that it has to do with OHIP and what they are willing to set values at as a means of limiting expenses for treatment and subsequent medication.
 
I just received blood work results from Life Labs showing the range for free T has changed dramatically.
it shows the range as 179 - 475 pmol/l my result is 591
previous results had @ 25 - 80 pmol/l my result was 79

it seems odd the the range would change like that? I triple checked and the units (pmol/l) has NOT changed.


LIFE LABS previous ANALOG ELISA METHOD range was 25-80 pmol/L and they changed over to the cFT ( CALCULATED FREE T ) using the VERMEULEN METHOD EQUATION. cFT range is 196-636 pmol/L for AGE RANGE of 18-49 years old my result was 225 ( borderline low ), units is the same just different ranges for different methods of testing. I live in STEEL TOWN,,,,,,,,, Hamilton, Ontario!

range of 179-475 pmol/L is for age range >50 years old
 

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Predict estradiol, DHT, and free testosterone levels based on total testosterone

⚠️ Medical Disclaimer

This tool provides predictions based on statistical models and should NOT replace professional medical advice. Always consult with your healthcare provider before making any changes to your TRT protocol.

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Understanding Your Hormones

Estradiol (E2)

A form of estrogen produced from testosterone. Important for bone health, mood, and libido. Too high can cause side effects; too low can affect well-being.

DHT

Dihydrotestosterone is a potent androgen derived from testosterone. Affects hair growth, prostate health, and masculinization effects.

Free Testosterone

The biologically active form of testosterone not bound to proteins. Directly available for cellular uptake and biological effects.

Scientific Reference

Lakshman KM, Kaplan B, Travison TG, Basaria S, Knapp PE, Singh AB, LaValley MP, Mazer NA, Bhasin S. The effects of injected testosterone dose and age on the conversion of testosterone to estradiol and dihydrotestosterone in young and older men. J Clin Endocrinol Metab. 2010 Aug;95(8):3955-64.

DOI: 10.1210/jc.2010-0102 | PMID: 20534765 | PMCID: PMC2913038

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