Mercury, Random Urine

Test Code

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

Note: Test performed on a specimen submitted in a nontrace element tube/container (not acid-washed) may not accurately reflect the patient's level. If a nontrace element tube/container is received, it will be accepted for testing; however, elevated results are reported with a message that resubmission with a trace element tube/container is recommended.

Transport Temperature

Refrigerated (cold packs)

Specimen Stability

Room temperature: 48 hours
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

Nonexposed adult	≤4 mcg/g creat
Biological Exposure Index (preshift)	≤35 mcg/g creat

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

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

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.