TRT blood tests

Unmasking Risks: Prevalence of Erythrocytosis Among Men on T-Therapy Across Different Formulations

Sep 17

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* The study population included men with (i) early morning total testosterone (TT) using LCMS, (ii) free T (FT) measured using equilibrium dialysis, and (iii) who were started on TTH. * Men using intramuscular or topical testosterone face a...

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Rusfertide Decreases Need for Therapeutic Phlebotomy in Polycythemia Vera

Sep 06

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New Treatment Could End the Phlebotomy Cycle for Men with High Hematocrit If you're a man on testosterone replacement therapy (TRT) who's been told you need regular blood draws to manage your hematocrit levels, a breakthrough treatment currently...

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Learn Quickly About Testosterone Deficiency and Its Treatments

Aug 14

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I hope you enjoy this part 1. Yes, it is almost 2 hours long but I concentrated everything I know so that you do not have to read for hours. What is low testosterone (hypogonadism) and how is it diagnosed? Low testosterone, or hypogonadism...

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Testosterone clinics - Do they know what they are doing?

Jul 31

* They discuss how these clinics often bypass proper lab testing, ignore fertility risks, and prioritize quick prescriptions over patient safety—all under the buzzword of “optimization.” Testosterone therapy is trending—but are clinics...

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427-Page Illustrated Book: Beyond Testosterone

Jul 28

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I am very pleased to announce that I finally finished my full color 427-page booK: Nelson Vergel's "Beyond Testosterone: The Illustrated Guide" and the associated free online resource at Excelmale.com serve as comprehensive guides to...

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How to Lower High Hematocrit Caused by Testosterone Replacement Therapy (TRT)

Jul 23

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High Hematocrit Caused by Testosterone Replacement Therapy By Nelson Vergel, B.S.Ch.E., M.B.A. High hematocrit occurs when there is an excessive production of red blood cells. High hematocrit can cause the blood to become very viscous or...

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What is the Optimum TRT Dose for Muscle Growth? : Nelson Vergel Reviews the Data

Jul 22

Landmark Study Reveals How Different Testosterone Doses Affect Muscle, Fat, and Health Markers in Young Men A deep dive into one of the most influential studies on testosterone dosing reveals key takeaways for anyone interested in hormone...

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Understanding Testosterone Replacement Therapy and Managing Side Effects

Jul 22

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13 min summary podcast: Introduction Hello everybody, Nelson Vergel here with ExcelMail.com. ExcelMail.com is a four-year-old forum, online site, with more than 14,000 members. Some of them are doctors, pharmacists, dietitians, exercise...

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How U.S. Blood Banks Handle Therapeutic Phlebotomy for Men on Testosterone Replacement Therapy (TRT)

Jul 15

How U.S. Blood Banks Handle Therapeutic Phlebotomy for Men on Testosterone Replacement Therapy (TRT) Blood centers have had to adapt their policies because the polycythemia/erythrocytosis that often accompanies TRT creates both medical need...

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Testosterone Replacement Clinical Guide from ExcelMale.com

Jul 15

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ExcelMale.com Quick Guide: DIAGNOSIS OF HYPOGONADISM: Symptoms and signs suggestive of testosterone deficiency in men: A. More specific symptoms and signs • Incomplete or delayed sexual development, eunuchoidism • Reduced sexual desire...

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U-Shaped Association Between Testosterone and Fractures

Jul 12

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The occurence of fractures in an elderly population is a significant concern, so this study looked at the relation between the number of fractures and hormone levels, including testosterone. It found fractures were higher at both low and high...

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Iron Supplementation Protocol to Raise Ferritin FAST While on TRT: The Vorck Protocol

Jul 12

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The Vorck Protocol Summary Background: The protocol was developed by a TRT user since 2001 who had difficulty recovering ferritin levels after blood donations. After conducting personal research and consulting with a hematologist in May 2021, he...

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TRT Hormone Predictor Widget

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