What should I test at the 6 week mark?

Phil Goodman

Well-Known Member
I want to establish a good baseline(or as close to baseline as I can get after 6 weeks in). They only tested four things for my initial visit.
LH = 5.8(1.7-8.6)
FSH = 6.3(1.5-12.4)
Total = 563(264-916)
Free = 10.1(8.7-25.1)

I know a lot of people recommend checking thyroid and I’m open to it if many people feel it’s really needed. Never had symptoms of thyroid issues before though. Always hard to gain or lose weight, can deal with heat with little to no issues and it takes a lot to make me sweat & can also tolerate cold more than most though I occasionally get cold feet and hands(assuming from circulation).

What else should I test? Estradiol I’m sure, maybe DHEA and pregnenelone. I wouldn’t mind looking into cortisol because I have had it flagged high on a test before, but that was a morning after a heavy leg day so I think that may have contributed. Anyway…what do feel needs to be tested to establish a good “close to baseline” measure and also look for other areas I could possibly improve.
 
I want to establish a good baseline(or as close to baseline as I can get after 6 weeks in). They only tested four things for my initial visit.
LH = 5.8(1.7-8.6)
FSH = 6.3(1.5-12.4)
Total = 563(264-916)
Free = 10.1(8.7-25.1)

I know a lot of people recommend checking thyroid and I’m open to it if many people feel it’s really needed. Never had symptoms of thyroid issues before though. Always hard to gain or lose weight, can deal with heat with little to no issues and it takes a lot to make me sweat & can also tolerate cold more than most though I occasionally get cold feet and hands(assuming from circulation).

What else should I test? Estradiol I’m sure, maybe DHEA and pregnenelone. I wouldn’t mind looking into cortisol because I have had it flagged high on a test before, but that was a morning after a heavy leg day so I think that may have contributed. Anyway…what do feel needs to be tested to establish a good “close to baseline” measure and also look for other areas I could possibly improve.

Unfortunately, your FT was tested using an inaccurate assay let alone we have no clue where your SHBG sits.

SHBG will have a significant impact on TT/FT let alone can dictate what injection frequency may suit you best.

Blood work should be done using the most accurate assays.

TT/estradiol/DHT (LC/MS-MS) and FT (Equilibrium Dialysis or Ultrafiltration).

Once blood levels have stabilized (4-6 weeks) get blood work done 6 weeks in as you want to know where said protocol (dose T/injection frequency) has your TT, FT, estradiol, SHBG, DHT.

We want to test at the true trough.

Pre-trt: LH/FSH, TT/FT, SHBG, estradiol, DHT, prolactin, DHEA, Vit D, PSA, lipids, CMP, CBC (includes RBCs/hemoglobin/hematocrit), full thyroid panel, cortisol.

6 weeks on trt you would want to at least test TT, FT, SHBG, estradiol, PSA, CBC (includes RBCs/hemoglobin/hematocrit).

You can add DHT, full thyroid panel, and cortisol as they were not done pre-trt.

Keep in mind that dysfunction thyroid/adrenals can mimic low-t symptoms let alone have a negative effect on the effectiveness of a trt protocol!
 
The only way to know where your FT level truly sits is to have it tested using the most accurate assays such as the gold standard Equilibrium Dialysis or Ultrafiltration (next best).

I would not use/rely upon the piss poor inaccurate direct immunoassay for FT!

These are the assays everyone should be using pre-trt let alone when on trt.


Quest Diagnostics

1 Total (LC/MS- No upper Limit) and Free Testosterone by Equilibrium Dialysis

2 Total (LC/MS- No upper Limit) and Free Testosterone by Equilibrium Ultrafiltration


Labcorp

1 Total (LC/MS- No upper Limit) and Free Testosterone by Equilibrium Dialysis


2 Total (LC/MS- No upper Limit) and Free Testosterone by Equilibrium Ultrafiltration
 

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⚠️ 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.

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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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