Testosterone, Free, Direct (Analog Immunoassay) with Total Testosterone, LC/MS-MS Blood Test
Compare labs
| Feature |
Labcorp
|
Quest Diagnostics
|
|---|---|---|
| Price | $89.99 | Coming soon |
| Results in | ~6 business days | — |
| Sample type | Blood Serum | — |
| Require fasting | No | — |
About the test
Testosterone, Free, Direct With Total Testosterone, LC/MS-MS provides a comprehensive evaluation of androgen status. Total testosterone reflects the overall amount of testosterone in the bloodstream, while direct free testosterone represents the unbound, biologically active portion available for use by the body. This panel is valuable for evaluating androgen status in patients with symptoms of hormonal imbalance, such as infertility, sexual dysfunction, or irregular menstrual cycles. It helps differentiate between primary and secondary hypogonadism and is also useful for monitoring testosterone replacement therapy.
Included biomarkers & Reference ranges
| Biomarker | Reference range |
|---|---|
| Testosterone The primary male sex hormone, also present in women in smaller amounts. Evaluated for low testosterone symptoms, fertility, and reproductive hormone imbalances. | M 250–1100 ng/dL F 2–45 ng/dL |
| Free Testosterone, Direct (Analog Immunoassay) Directly measures the small, unbound portion of testosterone that's biologically active in your tissues. | — |
Reference ranges vary by lab, age, and sex (M/F). Your report shows your exact range. Click any biomarker to see its optimal range and what your results mean.
How it works
- 1. Order online No referral or insurance
- 2. Get a requisition By email in 24–72 hours
- 3. Visit a draw center Bring a matching photo ID
- 4. Get results Securely by email
- These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
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