Selenium, Random Urine
Test Summary
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.
Aliases
- N/A
Specimen Collection
Special Instructions
N/A
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.
Patient Preparation
N/A
Storage
Acid-washed urine container
Transport Temperature
Room temperature
Specimen Stability
- Room temperature: 5 days
- Refrigerated: 14 days
- Frozen: 30 days
Limitations
N/A
Other Acceptable Specimens
N/A
Unacceptable Specimens
N/A
Order Code
SELEU
EPIC (Premier) Code
LAB3682
Includes
Creatinine
CPT Code
- 82570
- 84255
Billing Code
- 670469
- 670470
CPT Statement
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 the U.S. Food and Drug Administration. The FDA has determined that such clearance or approval is not necessary. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Physician Attestation of Informed Consent
N/A
Testing Laboratory
Quest Diagnostics Nichols Institute Valencia
27027 Tourney Road
Valencia CA, 91355
27027 Tourney Road
Valencia CA, 91355
Department
Reference Testing
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 |
Setup Schedule / Expected Turnaround Time
N/A
Specimen Collection
Special Instructions
N/A
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.
Patient Preparation
N/A
Storage
Acid-washed urine container
Transport Temperature
Room temperature
Specimen Stability
- Room temperature: 5 days
- Refrigerated: 14 days
- Frozen: 30 days
Limitations
N/A
Other Acceptable Specimens
N/A
Unacceptable Specimens
N/A
Result Information
Methodology
Inductively Coupled Plasma-Mass Spectrometry (ICP-MS)
Testing Laboratory
N/A
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 |
Setup Schedule / Expected Turnaround Time
N/A