harmonized;free testosterone; ed; refernce ranges

  1. madman

    The Harmonization of Clinical Laboratory Results

    From raising the profile of laboratory medicine to advocating for the profession, Dr. Killeen shares the initiatives that he’s most excited to work on under the Association for Diagnostics & Laboratory Medicine’s (ADLM’s, formerly AACC’s) new strategic plan.
  2. madman

    Reference Intervals for Free Testosterone in Adult Men Measured Using a Standardized Equilibrium Dialysis Procedure

    Again you heard it here first only at Nelson's ExcelMale! @Nelson Vergel Was going to drop this bomb a few days ago but you let down the curtains early LOL! https://onlinelibrary.wiley.com/doi/abs/10.1111/andr.13310 Reference Intervals for Free Testosterone in Adult Men Measured Using a...
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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