Monitoring Your Blood Tests While on Testosterone

Nelson Vergel

Founder, ExcelMale.com


Before undergoing testosterone replacement therapy (TRT), it's vital to obtain a number of blood tests. The main blood tests to measure are: total and free testosterone, hematocrit, PSA, estradiol, HDL cholesterol, and others. Pre-treatment testing provides doctors with baseline values to diagnose hypogonadism (low testosterone) and asses overall health. Baseline tests are also conducted during
TRT as well, ensuring that doctors can adjust TRT dose and catch side effects before they become an issue.

But do you know why these tests are needed or what they mean? Below, you'll find some of the main blood tests that have been shown to be affected by TRT, so doctors measure them before and during therapy to prevent or manage side effects:

Monitoring Your Blood Tests While on Testosterone | Discounted

 

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Recommended Lab Tests Before Starting and While on TRT


Testosterone Replacement Therapy (TRT) has changed the lives of many men around the world. Like any therapy, it can have great benefits if properly managed but negative side effects if not monitored. This article will briefly and simply review the different TRT tests that most physicians use to monitor your progress while minimizing potential side effects.

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hCG Mixing Calculator

HCG Mixing Protocol Calculator

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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