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Copper, RBC [3481]
MessageFor Specimen Integrity during Extreme Weather see the “Lockbox Usage in Extreme Weather” document at the top of this page.
Test Code
COPPRR
Alias/See Also
3481
CPT Codes
82525<br><strong>This test is not available for New York patient testing.</strong>
Preferred Specimen
0.5 mL red blood cells collected in an EDTA trace metal free (royal blue-top) tube
Minimum Volume
0.3 mL
Other Acceptable Specimens
Red blood cells collected in an EDTA (lavender-top), sodium heparin trace metal-free (royal blue-top), sodium heparin (green-top), sodium heparin lead-free (tan-top) or lithium heparin (green-top) tube.
Instructions
Carefully clean skin prior to venipuncture.
Avoid hemolysis.
Avoid worksite collection.
Red blood cells Trace Metal. Centrifuge and separate RBC's into an acid washed plastic screw cap vial within two hours of collection.
Avoid hemolysis.
Avoid worksite collection.
Red blood cells Trace Metal. Centrifuge and separate RBC's into an acid washed plastic screw cap vial within two hours of collection.
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 10 days
Refrigerated: 10 days
Frozen: Unacceptable
Refrigerated: 10 days
Frozen: Unacceptable
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Clotted
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: Sun, Wed, Fri; Report available: 2-5 days
Reference Range
0.53-0.91 mg/L
Clinical Significance
Copper is an essential element that is a cofactor of many enzymes. Copper metabolism is distributed in Wilson's disease, Menkes disease, primary biliary cirrhosis, and Indian childhood cirrhosis. Copper concentrations increase in acute phase reactions. Copper concentrations are decreased with nephrosis, malabsorption, and malnutrition. Copper concentrations are also useful to monitor patients, especially preterm newborns, on nutritional supplementation. Results of copper are often interpreted together with ceruloplasmin.
Performing Laboratory
Quest Diagnostics Lewisville |
2501 South State Hwy 121, Suite 1100 |
Lewisville, TX 75067-8188 |
Last Updated: November 29, 2021