What is the reference range for Urinary Selenium?

The standard reference range for Urinary Selenium is Typically 20–100 µg/g creatinine; serum or whole-blood selenium is a more stable biomarker of status.. Reference ranges vary by laboratory and assay platform — interpret in context of the issuing laboratory's stated range.

Which tests measure Urinary Selenium?

Urinary Selenium is measured in 2 tests on BiomarkersLabs.com, including Comprehensive Urine Elements Profile - Timed, Dried Urine ICPMS Toxic and Essential Elements.

Biomarker Reference · Se

What does the Urinary Selenium test measure?

Urinary Selenium (Se) is a clinical biomarker used in heavy-metals-toxicology assessment. Selenium is an essential trace element, component of selenoproteins (glutathione peroxidases, thioredoxin reductases) with antioxidant and thyroid-hormone-metabolism roles. It is measured in 2 laboratory tests on BiomarkersLabs.com.

Reference Range: Typically 20–100 µg/g creatinine; serum or whole-blood selenium is a more stable biomarker of status.
Units: µg/g creatinine, µmol/mol creatinine, μg/g creatinine
Measured In: 2 tests
Category: Heavy Metals

Functional medicine optimalOptimal ranges are better defined for serum; urinary selenium interpretation is context-dependent and less standardised.

What is Urinary Selenium?

Selenium is an essential trace element, component of selenoproteins (glutathione peroxidases, thioredoxin reductases) with antioxidant and thyroid-hormone-metabolism roles. Urinary selenium reflects recent dietary intake and is influenced by supplementation; plasma selenium is a better marker of status over weeks to months.

Why is Urinary Selenium measured?

Urinary selenium correlates with dietary intake and supplementation. Deficiency is rare in developed countries but can cause cardiomyopathy (Keshan disease) and skeletal myopathy. Excess selenium (chronic intake >400 µg/day) can cause selenosis with hair loss, nail changes, and neurological symptoms.

Reference ranges

Standard reference: Typically 20–100 µg/g creatinine; serum or whole-blood selenium is a more stable biomarker of status.
Functional medicine optimal: Optimal ranges are better defined for serum; urinary selenium interpretation is context-dependent and less standardised.
Units: µg/g creatinine, µmol/mol creatinine, μg/g creatinine

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

Tests that measure Urinary Selenium

2 tests on BiomarkersLabs.com include this biomarker.

BML-HMT-014Comprehensive

Comprehensive Urine Elements Profile - Timed

Urinary Selenium reference range in this test: Typically 20–100 µg/g creatinine; serum or whole-blood selenium is a more stable biomarker of status.

BML-HMT-015Comprehensive

Dried Urine ICPMS Toxic and Essential Elements

Urinary Selenium reference range in this test: Laboratory-specific; typically 20–100 μg/g creatinine.

Related clinical conditions

Related Biomarkers

Frequently measured alongside

Urinary AluminiumAl2 tests Urinary ArsenicAs2 tests Urinary CadmiumCd2 tests Urinary MercuryHg2 tests Urinary LeadPb2 tests Urinary IodineI1 test Urinary CobaltCo1 test Urine CreatinineCr3 tests

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