What Testosterone Test Do I Need? The Right Panel to Order
By TRT NYC Editorial Team
Most men should get a panel that includes total and free testosterone plus SHBG. If your testosterone is low, add LH, FSH, and a sensitive estradiol test to find the cause. Hematocrit and PSA are added for baseline safety, especially before TRT, and you should always test in the morning. Here’s exactly which testosterone test to order.
“Total testosterone” alone is the most common mistake, it can read normal while your usable testosterone is low. The right panel depends on your situation: a first screen, a full workup, or monitoring on TRT. This guide tells you which tests to order and why. (For how to test, see how to test testosterone.)
What Testosterone Test Do I Need? (Quick Answer)
For a meaningful result, order total testosterone, free testosterone, and SHBG at minimum. If those come back low, your provider will usually add LH and FSH (to find the cause) and a sensitive estradiol test (for estrogen balance). Before starting TRT, add hematocrit (CBC) and PSA for safety. One number total testosterone alone usually isn’t enough.
The Testosterone Tests You Should Order
| Test | What it tells you | Who needs it |
|---|---|---|
| Total testosterone | Your overall testosterone level | Everyone |
| Free testosterone | The active, usable testosterone | Everyone — especially symptoms with a “normal” total |
| SHBG | The protein binding your testosterone | Helps interpret free testosterone |
| LH & FSH | Whether the cause is the testes or pituitary | If testosterone is low |
| Estradiol (sensitive) | Estrogen balance | If symptomatic or on TRT |
| Hematocrit (CBC) | Blood thickness | Baseline + during TRT |
| PSA | Prostate screening | Older men + during TRT |
Total vs Free Testosterone: Why You Need Both
This is the most important point. Total testosterone includes hormone bound to proteins (mostly inactive) plus a small free portion that’s actually usable. A man can have a “normal” total but a low free testosterone and still have symptoms. That’s why testing both (with SHBG to interpret them) gives the real picture. More in free vs total testosterone and what is SHBG.
Basic vs Comprehensive Testosterone Panel
- Basic screen (first time, feeling off): total + free testosterone + SHBG. Enough to know if you should dig deeper.
- Comprehensive workup (low result or clear symptoms): add LH, FSH, sensitive estradiol, and sometimes prolactin and thyroid — to find why it’s low.
- TRT baseline/monitoring: total + free testosterone, estradiol, hematocrit, and PSA — repeated on a schedule.
At-Home vs Lab: Which Test to Use
A quick first screen can be done with an at-home testosterone test kit, many measure total (and some free) testosterone. For a comprehensive panel (LH, FSH, sensitive estradiol) or a diagnosis, a lab/doctor draw is best. A good approach: screen at home, then confirm and complete the panel through a provider.
When to Order Which Test
- Just curious / first symptoms: basic screen (total, free, SHBG), morning.
- Result came back low: full workup to find the cause (add LH/FSH/estradiol).
- Starting TRT: baseline including hematocrit and PSA.
- On TRT: monitoring panel every few months.
Always test in the morning (7–10 AM) — see the best time to test testosterone, and compare results to your lab’s range (normal testosterone levels).
The Bottom Line
The testosterone test you need is rarely “just total testosterone.” For most men, order total + free testosterone + SHBG; if it’s low, add LH, FSH, and sensitive estradiol to find the cause; and add hematocrit and PSA before TRT. Test in the morning, and interpret results with a provider, the right panel is what turns a confusing number into a real answer.
👉 Ready to test? Start with an at-home testosterone test kit that covers the key markers, and review the low testosterone symptoms to see if testing is worth it.
Frequently Asked Questions
What testosterone test do I need?
Most men should order total testosterone, free testosterone, and SHBG. If those are low, add LH, FSH, and a sensitive estradiol test to find the cause, plus hematocrit and PSA before starting TRT. Total testosterone alone usually isn’t enough.
Should I test total or free testosterone?
Both. Total testosterone is the headline number, but free testosterone is the active form your body uses and a normal total can hide a low free level. Testing both (with SHBG) gives the accurate picture.
What is included in a full testosterone panel?
A comprehensive panel includes total and free testosterone, SHBG, LH, FSH, and a sensitive estradiol test, sometimes with prolactin and thyroid. Hematocrit and PSA are added for safety, especially before or during TRT.
Do I need to test estrogen (estradiol) too?
If you have symptoms or are on TRT, yes, use a sensitive (LC-MS/MS) estradiol test, since estrogen balance affects libido, mood, and side effects. It’s especially important when testosterone is low or being treated.
What testosterone test do I need before starting TRT?
Before TRT, get total and free testosterone, SHBG, sensitive estradiol, LH/FSH, hematocrit (CBC), and PSA. This confirms low testosterone, identifies the cause, and establishes a safety baseline for monitoring.
Can an at-home test tell me what I need?
At-home kits are great for a first screen and often measure total (and some free) testosterone. For a full diagnostic panel (LH, FSH, sensitive estradiol) or a diagnosis, confirm with a lab and provider.
Written by the TRT NYC Editorial Team. Reviewed against current testing guidance (Endocrine Society; MedlinePlus). Last updated: June 2026.
Medical disclaimer: This article is for educational purposes only and is not medical advice, diagnosis, or treatment. Reference ranges vary by laboratory. trtnyc.com is an independent informational resource, not a medical provider. Always interpret lab results with a licensed healthcare provider.