Testosterone, Total + Free
Both total and bioavailable free testosterone — the complete androgen workup.
What this test measures
Measures total testosterone (bound and unbound) plus the free, biologically active fraction. Essential for diagnosing low T or monitoring hormone replacement therapy.
Who should take this test
Men experiencing low energy, low libido, mood changes, muscle loss, or those on testosterone therapy.
Biomarkers included
Preparation
Test in the morning between 7–10 AM for accurate results. No fasting required.
How it works
- 01. Order online — physician order included.
- 02. Visit a CLIA-certified draw site near you.
- 03. Get results in 1–3 business days via secure portal.
Find a lab near you
Use our partner's 4,500+ CLIA-certified Quest and LabCorp draw sites nationwide.
Search by ZIPFrequently asked questions
Why morning?
Testosterone follows a circadian rhythm and peaks in the morning.
What's a normal range?
Total: 264–916 ng/dL (lab-dependent). Talk to your doctor about your context.
Related tests
Medical disclaimer: This test is for informational and screening purposes only and is not a substitute for medical advice, diagnosis, or treatment. Results should be reviewed with a qualified healthcare provider.