A simple but important request!

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Comments welcomed on how to carefully proceed with prescribing physician!
 

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Q1: So what blood panel did originally ask for?

You asked provider to add fT and SHBG to the panel. You didn't indicate what fT test so the number may or may not be useful. This provider just told you very clearly he bases treatment off of TT. That is helpful to know.

Q2: do you know what fT measurement to request? I'd have a look at madman's extensive posting on the topic.

Or you could pull SHBG along with TT and bracket your estimated fT using online calculators (cfTv and cfTz).

The role of fT, SHBG and bound T (albumin and SHBG bound) is active area of research and ain't going to change how your provider approaches your treatment.

If you get what's currently thought to be an accurate measurement of fT then it's good to know as well as SHBG. If you order the wrong test, you may confuse the hell out of yourself and be back on here asking what the heck is going on.
 
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Q1: So what blood panel did originally ask for?

You asked provider to add fT and SHBG to the panel. You didn't indicate what fT test so the number may or may not be useful. This provider just told you very clearly he bases treatment off of TT. That is helpful to know.

Q2: do you know what fT measurement to request? I'd have a look at madman's extensive posting on the topic.

Or you could pull SHBG along with TT and bracket your estimated fT using online calculators (cfTv and cfTz).

The role of fT, SHBG and bound T (albumin and SHBG bound) is active area of research and ain't going to change how your provider approaches your treatment.

If you get what's currently thought to be an accurate measurement of fT then it's good to know as well as SHBG. If you order the wrong test, you may confuse the hell out of yourself and be back on here asking what the heck is going on.
Thank you for that information. I was not aware there were multiple tests so I will be sure to review the ”Madman’s” FT measurement post.
 
Thank you for that information. I was not aware there were multiple tests so I will be sure to review the ”Madman’s” FT measurement post.

Put that last link in there for you under "what the heck is going on". Decent concise summary. Should save you some time but reading all the info on here RE: fT measurement well worth the time IMO if you are willing.

Also, what's the answer to Q1?
 
Last edited by a moderator:
Put that last link in there for you under "what the heck is going on". Decent concise summary. Should save you some time but time reading all the info on here RE: fT measurement well worth the time IMO if you are willing.

Also, what's the answer to Q1?
Q1- CBC, Platelet, Hepatic Function, PSA, Testosterone, and Estradiol (Sensitive).
 

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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

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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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