Testosterone Blood Test Guide: What to Order, Where to Get It, What It Costs
Total T, free T, SHBG, estradiol, LH, FSH — and a dozen other markers. Here's exactly what to order, where to get it done, and how to read your results.
June 19, 2026
Before you start TRT, before you decide a GLP-1 medication is the right move, and before you spend money on testosterone-boosting supplements, you need one thing: a blood test. Not just any blood test — the right panels, ordered at the right time, interpreted with the right context.
This guide covers the complete testosterone blood panel, what each marker tells you, where to get tested, and what your results mean for your next steps.
The Essential Testosterone Panel
A basic testosterone test (total T only) tells you almost nothing useful on its own. You need the full picture. Here's what to order and why each marker matters:
| Test | What It Tells You | Reference Range |
|---|---|---|
| Total Testosterone | Total amount of testosterone in your blood (bound + free) | 300–1,000 ng/dL |
| Free Testosterone | The active, unbound testosterone your body can actually use | 5–21 ng/dL (age-dependent) |
| SHBG | Sex hormone-binding globulin — binds testosterone and makes it unavailable. High SHBG = low free T even with normal total T | 10–57 nmol/L |
| Estradiol (E2) | Estrogen level. Too high indicates excess aromatase conversion (often from body fat) | 10–40 pg/mL |
| LH | Luteinizing hormone — tells your testes to make testosterone. Low LH + low T suggests a pituitary problem | 1.8–8.6 mIU/mL |
| FSH | Follicle-stimulating hormone — drives sperm production. Important if fertility is a concern | 1.5–12.4 mIU/mL |
| Prolactin | Elevated prolactin can suppress testosterone production. Rules out pituitary adenoma | 4–15 ng/mL |
| CBC (Hematocrit) | Baseline for TRT monitoring. TRT increases red blood cell production — too high causes clotting risk | 38.3–48.6% |
| PSA | Prostate-specific antigen. Baseline before TRT to rule out prostate issues | <4.0 ng/mL (age-dependent) |
| Lipid Panel | Cholesterol and triglycerides. Testosterone affects lipid metabolism | Total cholesterol <200 mg/dL |
| Thyroid (TSH, Free T4) | Thyroid dysfunction mimics low T symptoms: fatigue, weight gain, brain fog | TSH: 0.4–4.0 mIU/L |
| Metabolic Panel | Liver and kidney function, fasting glucose. Baseline health snapshot | Standard ranges |
When to Test
Testosterone follows a circadian rhythm — it peaks between 7:00 and 10:00 AM and drops throughout the day. Always test in this morning window, fasting (no food for 8+ hours). If your first result is low, guidelines recommend retesting on a different day to confirm, since testosterone levels vary day to day.
Where to Get Tested
Option 1: Quest Diagnostics or Labcorp (Walk-In)
You can order labs directly through telehealth providers (including TRT platforms), or use a direct-to-consumer lab service that sends you a requisition. Show up at a Quest or Labcorp draw station, and results are typically available in 2–5 business days. Cost: $100–$250 for a comprehensive male hormone panel, depending on the ordering service.
Option 2: At-Home Test Kits
Companies like Everlywell, LetsGetChecked, and Marek Health offer at-home testosterone test kits using a finger-prick blood sample. Convenience is the upside — you test at home without a lab visit. The downside: finger-prick samples can be less accurate for some markers, and you typically get fewer tests in the panel.
Option 3: Through Your Provider
Most telehealth TRT and GLP-1 platforms order labs as part of the intake process. This is often the simplest path — the provider orders the right panel, sends you a requisition for a local lab, and reviews the results with you directly.
Reading Your Results
Scenario 1: Low Total T + Low Free T + Normal LH/FSH
This pattern (functional hypogonadism) is the most common in men with obesity. The hypothalamus recognizes the low testosterone but can't adequately stimulate production due to metabolic dysfunction. GLP-1 medications may restore testosterone naturally by addressing the underlying obesity — ENDO 2026 showed up to 77% testosterone recovery with weight loss.
Scenario 2: Low Total T + Low LH/FSH
Low testosterone combined with low LH and FSH suggests secondary hypogonadism — the pituitary isn't sending the right signals. This needs medical workup to rule out pituitary adenoma, Kallmann syndrome, or other central causes. TRT or enclomiphene may be appropriate.
Scenario 3: Normal Total T + Low Free T + High SHBG
Your body is making enough testosterone but SHBG is binding too much of it. Common in men with liver issues, hyperthyroidism, or aging. Lowering SHBG through lifestyle changes (reducing alcohol, addressing insulin resistance) may help. Some providers use low-dose boron supplementation.
Scenario 4: Low Total T + High Estradiol
Excess aromatase conversion — your body is turning testosterone into estrogen. Almost always driven by excess body fat. This is the strongest indicator that weight loss (via GLP-1 or otherwise) should be the first intervention, not TRT. Adding testosterone when aromatase is elevated can actually increase estrogen further.
What to Do Next
Feel30 TRT
Full TRT protocol with lab ordering, testosterone cypionate, and ongoing monitoring. Start with a blood panel.
Start Your ConsultationNot Sure If It's Low T or Weight?
Many men with obesity have low testosterone that resolves with weight loss. Compare GLP-1 providers to treat the root cause.
Compare GLP-1 Providers →The Bottom Line
Get tested properly — morning draw, fasting, full panel with total T, free T, SHBG, estradiol, LH, and FSH at minimum. Your results will tell you whether you need TRT, weight loss, or further medical workup. The test is the roadmap; everything else is guessing.