Selenium, Random Urine

Message

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Test Code

SELEU

CPT Codes
82570, 84255

Includes

Creatinine

Preferred Specimen

2 mL Urine collected in an acid-washed container

Minimum Volume

2 mL

Instructions

Collect urine in an acid-washed plastic container. Avoid worksite collection. Send aliquot in a Specialty tube.

Transport Container

Acid-washed urine container

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 5 days
Refrigerated: 14 days
Frozen: 30 days

Methodology
Inductively Coupled Plasma/Mass Spectrometry (ICP/MS)

FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Reference Range

Selenium, Urine	<160 mcg/L
Creatinine, Random Urine
≤6 Months	2-28 mg/dL
7- 11 Months	2-31 mg/dL
1-2 Years	2-110 mg/dL
3-8 Years	2-130 mg/dL
9-12 Years	2-160 mg/dL
>12 Years Male	20-320 mg/dL
>12 Years Female	20-275 mg/dL
Selenium/Creatinine Ratio	<140.0 mcg/g creat

Clinical Significance

Selenium is considered an essential trace element. It enters the food chain through plants. Selenium plays an important role in the control of thyroid hormone metabolism. Selenium deficiency may cause reduced growth rates, owing to a feedback response, which lowers tri-iodothyronine-mediated synthesis of growth hormone in the pituitary, while a combined deficiency of selenium and iodine exacerbates hypothyroidism. Selenium is important for proper reproductive performance.

Performing Laboratory

Quest Diagnostics Nichols Institute

27027 Tourney Road

Valencia, CA 91355-5386

Last Updated: February 15, 2022

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.