Which tests measure Testosterone?

Testosterone is measured in 1 test on BiomarkersLabs.com, including Blood Spot LCMS Hormones 7 with SHBG and Thyroids.

Biomarker Reference · T

What does the Testosterone test measure?

Q: What is the reference range for Testosterone?

The standard reference range for Testosterone is Adult male approximately 300–1,000 ng/dL; adult female 15–70 ng/dL; dried blood spot intervals are assay-specific and not directly equivalent to serum total testosterone.. Reference ranges vary by laboratory and assay platform — interpret in context of the issuing laboratory's stated range.

Testosterone (T) is a clinical biomarker used in thyroid-endocrine assessment. Testosterone is synthesised in testicular Leydig cells and ovarian theca cells under LH control, with peripheral conversion in adipose and skin. It is measured in 1 laboratory test on BiomarkersLabs.com.

Reference Range: Adult male approximately 300–1,000 ng/dL; adult female 15–70 ng/dL; dried blood spot intervals are assay-specific and not directly equivalent to serum total testosterone.
Units: ng/dL, nmol/L
Measured In: 1 test
Category: Thyroid

Functional medicine optimalFunctional practitioners often target blood spot testosterone toward the upper half of the reference interval for symptomatic men; women's optimal ranges are narrower and highly individual.

What is Testosterone?

Testosterone is synthesised in testicular Leydig cells and ovarian theca cells under LH control, with peripheral conversion in adipose and skin. The majority is bound to SHBG; blood spot sampling reflects both bound and free fractions but correlates more closely with bioavailable testosterone than with serum total T measured by immunoassay.

Why is Testosterone measured?

Testosterone underpins muscle mass, libido, bone density, and erythropoiesis. Clinicians use it to investigate hypogonadism, polycystic ovary syndrome, and adrenal androgen excess, and to monitor testosterone replacement or suppression. LC-MS measurement on dried blood spot avoids immunoassay cross-reactivity, a particular advantage at the low concentrations seen in women.

Reference ranges

Standard reference: Adult male approximately 300–1,000 ng/dL; adult female 15–70 ng/dL; dried blood spot intervals are assay-specific and not directly equivalent to serum total testosterone.
Functional medicine optimal: Functional practitioners often target blood spot testosterone toward the upper half of the reference interval for symptomatic men; women's optimal ranges are narrower and highly individual.
Units: ng/dL, nmol/L

Reference ranges vary by laboratory and assay platform. Interpret in context of the issuing laboratory's stated range.

Tests that measure Testosterone

1 test on BiomarkersLabs.com include this biomarker.

BML-THY-030Comprehensive

Blood Spot LCMS Hormones 7 with SHBG and Thyroids

Testosterone reference range in this test: Adult male approximately 300–1,000 ng/dL; adult female 15–70 ng/dL; dried blood spot intervals are assay-specific and not directly equivalent to serum total testosterone.

Related clinical conditions

Related Biomarkers

Frequently measured alongside

Oestradiol (Dried Blood Spot)E22 tests ProgesteroneP41 test Dehydroepiandrosterone Sulphate (Dried Blood Spot)DHEA-S2 tests CortisolF1 test Thyroid-Stimulating HormoneTSH5 tests Free ThyroxineFT45 tests Free TriiodothyronineFT35 tests Sex Hormone-Binding Globulin (Dried Blood Spot)SHBG2 tests

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