Very Interesting Blood Test Free T result (I think)

klawler9

New Member
For my most recent physical last month I decided to see what the numbers looked like after a 4 day water only fast. I finished the fast and ate the night before the tests. Blood lipid panel etc all came back really good so I know Im on the right track with my diet but my testosterone is the interesting part

I am on a twice a week protocol of inter muscular injections test cyp at 50mg. Been on this for close to two years now. Results are great, no issues no side effects in general thrilled with it. The numbers though...

Testosterone 846 ng/dL

Sex Hormone Binding Globulin 30 nmol/L

Testosterone, Free Calculated 728 pmol/L

The units matter so I converted the Free to 474 pg/mL to compare to older test results. Before TRT I was hovering around 70 pg/mL. I then went to 222pg/mL and now it appears to be super high while total is still fine. SHBG is up significantly from 17 at my last test.

I don't feel bad but I'm not sure I would. I can't find any literature that talks about high free but I also wonder if this was the result of testing after a multi day fast.

Any opinions?

My PC is good but not schooled in this stuff really.
 
That's a miscalculation. 728 pMol/L is 0.728 nMol/L, which is 21 ng/dL, and shows that the Vermeulen calculation was used. The Tru-T result is 30 ng/dL, putting you at the top of the normal healthy range, 16-31.
 
That's a miscalculation. 728 pMol/L is 0.728 nMol/L, which is 21 ng/dL, and shows that the Vermeulen calculation was used. The Tru-T result is 30 ng/dL, putting you at the top of the normal healthy range, 16-31.
Thank you! I ran it through a calculator I found online. I obmiouly did something wrong so I appreciate it.
 

hCG Mixing Calculator

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TRT Hormone Predictor Widget

TRT Hormone Predictor

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.

ℹ️ Input Parameters

Normal range: 300-1000 ng/dL

Predicted Hormone Levels

Enter your total testosterone value to see predictions

Results will appear here after calculation

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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