Many men in Gilbert, Arizona and the East Valley who look into testosterone therapy start in the same place: a single number. Maybe it came from a finger-prick kit ordered online, maybe from a routine physical. Either way it arrives as one figure with a reference range beside it, and it feels like an answer.
It usually isn’t. Not because the number is wrong, but because a total testosterone reading on its own cannot tell you why it looks the way it does, or what to do about it.
Here is what a full hormone panel actually measures, and why the markers surrounding testosterone matter as much as testosterone itself.
Article Overview Details
What a single testosterone reading tells you, and what it does not
Total testosterone measures all the testosterone circulating in your blood. That includes the portion bound to proteins and unavailable to your body, and the smaller portion that is free and biologically active.
Two men can have an identical total testosterone number and feel completely different, because the split between bound and free testosterone is different in each of them. One may have most of it locked up and unavailable. The other may not.
Total testosterone also moves through the day. It is typically highest in the morning and declines from there, which is why the timing of a blood draw changes the result.
The markers on a full panel
A complete hormone workup looks at testosterone alongside the systems that regulate it and the systems it affects.
Total testosterone
All circulating testosterone, bound and unbound. The starting point, not the conclusion.
Free testosterone
The portion not bound to proteins, and therefore available to your tissues. Often the more informative of the two, and frequently not measured by low-cost testing.
SHBG, or sex hormone binding globulin
The protein that binds testosterone and controls how much stays free. When SHBG is high, more testosterone is bound and unavailable even if the total looks normal. This is one of the most common reasons a normal-looking result does not match how someone feels.
Estradiol
A form of estrogen, present and necessary in men. Testosterone converts to estradiol through an enzyme called aromatase. Both unusually high and unusually low estradiol are worth knowing about, and neither is visible on a testosterone-only test.
LH and FSH
Luteinizing hormone and follicle-stimulating hormone are signals sent from the brain to the testes. They help distinguish between a situation originating in the testes and one originating in the signaling from above. Those are different pictures with different implications, including for fertility.
Thyroid panel
Thyroid function affects energy, weight regulation, mood and temperature. Several of the symptoms that lead men to suspect low testosterone are also thyroid symptoms, which is why checking one without the other leaves an obvious question open.
PSA, or prostate specific antigen
A prostate marker, measured before hormone therapy is considered. It establishes a baseline and informs whether treatment is appropriate.
Complete blood count
Includes hematocrit and hemoglobin, which reflect red blood cell concentration. A standard part of monitoring for anyone considering or receiving testosterone therapy.
Comprehensive metabolic panel
Kidney function, liver function, electrolytes and blood glucose. Baseline organ function is relevant to any treatment decision.
Lipid panel
Cholesterol and triglycerides. Metabolic health and hormone health are connected, so this is included when the history makes it relevant.
Why these only make sense together
The same total testosterone number can mean entirely different things depending on what sits beside it.
A mid-range total with low SHBG and healthy free testosterone is a different situation from the same total with high SHBG and low free testosterone, even though the headline figure is identical. Add estradiol that is out of range, or a thyroid marker that is off, and the picture changes again.
Reading one marker in isolation is how people end up treating something that is not the problem, or being told nothing is wrong when something treatable is sitting one line further down the page.
What this looks like at a first visit
At Limitless Regen in Gilbert, Arizona, blood is drawn at the clinic rather than mailed to your house. Steven C. Northern, MSN, APRN, FNP-C, ABAAHP, reads the panel and goes through it with you.
Lab work is cash-pay and depends on the panel. Most first-visit panels fall between $110 and $400. Follow-up panels are usually less. We confirm the exact panel and price before anything is drawn.
If the panel does not support treatment, you will be told that. Being sent home with good news is a real outcome.
For more on how Steven Northern goes over your results with you, see Why We Go Over Your Lab Results With You.
Common questions
Can I use results from a home kit?
They can be a reasonable starting point, but a home kit may measure total testosterone only. A treatment decision generally needs the surrounding markers as well.
How much does lab work cost?
Lab work is cash-pay and depends on the panel. Most first-visit panels fall between $110 and $400. Follow-up panels are usually less. We confirm the exact panel and price before anything is drawn.
What happens when my results come back?
When your results are back, Steven Northern goes through them with you.
Last updated October 1, 2026.
Start with your numbers
A full panel is the place to start. Call (480) 400-0105 to book a consultation and blood panel at our Gilbert, Arizona clinic, serving the greater East Valley.