What is the reference range for Selenium, Urine?

The standard reference range for Selenium, Urine is Approximately 20–100 µg/g creatinine; population norms vary by region and diet.. Reference ranges vary by laboratory and assay platform — interpret in context of the issuing laboratory's stated range.

Which tests measure Selenium, Urine?

Selenium, Urine is measured in 1 test on BiomarkersLabs.com, including Blood Spot Thyroids + Dried Urine ICPMS Toxic and Essential Elements.

Biomarker Reference · Se

What does the Selenium, Urine test measure?

Selenium, Urine (Se) is a clinical biomarker used in heavy-metals-toxicology assessment. Selenium is a trace element integral to glutathione peroxidase and the iodothyronine deiodinases that convert T4 to T3. It is measured in 1 laboratory test on BiomarkersLabs.com.

Reference Range: Approximately 20–100 µg/g creatinine; population norms vary by region and diet.
Units: µg/g creatinine, µg/L
Measured In: 1 test
Category: Heavy Metals

Functional medicine optimalMid-reference; both deficiency and chronic excess carry risk.

What is Selenium, Urine?

Selenium is a trace element integral to glutathione peroxidase and the iodothyronine deiodinases that convert T4 to T3. Urinary selenium reflects recent dietary intake and is more dynamic than whole-blood or serum levels.

Why is Selenium, Urine measured?

Deficiency impairs antioxidant defence and peripheral thyroid hormone activation, manifesting as hypothyroid symptoms despite adequate iodine. Excess selenium from over-supplementation can cause selenosis (hair loss, nail changes, neuropathy) and paradoxically increase diabetes risk.

Reference ranges

Standard reference: Approximately 20–100 µg/g creatinine; population norms vary by region and diet.
Functional medicine optimal: Mid-reference; both deficiency and chronic excess carry risk.
Units: µg/g creatinine, µg/L

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

Tests that measure Selenium, Urine

1 test on BiomarkersLabs.com include this biomarker.

BML-HMT-011Comprehensive

Blood Spot Thyroids + Dried Urine ICPMS Toxic and Essential Elements

Selenium, Urine reference range in this test: Approximately 20–100 µg/g creatinine; population norms vary by region and diet.

Related clinical conditions

Related Biomarkers

Frequently measured alongside

Thyroid-Stimulating HormoneTSH9 tests Free ThyroxineFree T49 tests Free TriiodothyronineFree T38 tests Thyroid Peroxidase AntibodyTPOAb2 tests Thyroglobulin AntibodyTgAb2 tests Arsenic (Urine)As3 tests Cadmium, UrineCd2 tests Mercury, UrineHg2 tests

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