Most men who walk in for a TRT consultation have already had their testosterone checked at least once. Most of them have also been told some version of you are within normal range. That answer is technically correct and almost always insufficient. Here is what a complete picture actually looks like.
Total vs. free testosterone
Total testosterone is what the lab measures most easily, but most of that testosterone is bound to a transport protein called SHBG (sex hormone binding globulin) and is not biologically active. Free testosterone — the unbound fraction your tissues can actually use — is what determines how you feel.
It is entirely possible to have "normal" total testosterone and clinically meaningful free testosterone deficiency, particularly in men over 40 with elevated SHBG. If you have ever been told "your levels are fine" while your symptoms suggested otherwise, this is usually why.
The markers we actually track
- Total and free testosterone — the foundation, but read together.
- SHBG — the binding protein that determines how much testosterone is bioavailable.
- Estradiol (sensitive assay) — must be balanced, not crushed.
- Hematocrit — TRT can thicken the blood; we watch this closely.
- PSA — baseline and ongoing surveillance where indicated.
- Lipid panel and ApoB — cardiovascular context for long-term safety.
- LH and FSH — distinguish primary vs. secondary hypogonadism.
Why "optimal" is not the same as "normal"
Standard reference ranges are built from population averages that include unwell, sedentary, and elderly men. A 35-year-old at the bottom of "normal" is not healthy — he is just inside a statistical bucket. Our goal in TRT is to restore levels to the optimal range for a healthy, active adult, not the lowest acceptable number on a lab printout.
We adjust dose, frequency, and ancillary support based on data — not gut feel — so your protocol stays dialed in for the long term.
What we do with the data
Every Nouveau TRT patient gets a structured 6-week lab review after starting therapy, then follow-up surveillance every 3 to 6 months. We adjust dose, frequency, and ancillary support (including estradiol management when needed) based on the trend — not a single snapshot. The protocol that worked at month 3 may need refinement at month 9, and that is the whole point of staying on a clinical schedule.
