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Mercury, Random Urine [637]
MessageFor Specimen Integrity during Extreme Weather see the “Lockbox Usage in Extreme Weather” document at the top of this page.
Test Code
MERCU
Alias/See Also
637
CPT Codes
82570, 83825
Includes
Creatinine
Preferred Specimen
7 mL random urine collected in an acid-washed metal-free, plastic leak-proof container
Patient Preparation
Avoid seafood consumption for 48 hours before collection. Avoid worksite collection.
Minimum Volume
3 mL
Instructions
Avoid work-site collection. Collect urine in acid-washed or metal-free, plastic, leakproof container.
Transport Temperature
Refrigerated (cold packs)
Specimen Stability
Room temperature: 48 hours
Refrigerated: 5 days
Frozen: 14 days
Refrigerated: 5 days
Frozen: 14 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 the U.S. Food and Drug Administration. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Setup Schedule
Set up: Mon-Sat p.m.; Report available: 1 day
Reference Range
Mercury, Random Urine
Creatinine, Random Urine
Nonexposed adult | ≤4 mcg/g creat |
Biological Exposure Index (preshift) | ≤35 mcg/g creat |
≤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 |
Clinical Significance
Mercury, a highly toxic metal, is present in select industrial environments and in contaminated ocean fish. Urinary measurements are appropriate for assessing ongoing exposure to inorganic mercury.
Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153
Last Updated: November 30, 2021