Test Details
Methodology
Inductively-coupled plasma/mass spectrometry (ICP/MS)
Result Turnaround Time
2 - 5 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Use
Monitor exposure to copper
Special Instructions
Random urine. Do not use preservatives. Preservatives used for routine analysis may contain mercuric oxide (ie, Stabiluit) which interferes with all metal testing. If both urinalysis and metal testing are ordered, please submit a separate urine specimen (no additive) for the metal testing.
Limitations
Increased urinary copper excretion may occur in Indian childhood cirrhosis or with chronic active hepatitis; Wilson's disease and chronic active hepatitis may also resemble one another; thus, parameters in addition to urinary copper excretion, such as ceruloplasmin and serum copper, are needed.
Custom Additional Information
Copper poisoning through chronic inhalation of copper fumes and/or dusts that are typically associated with industry may produce symptoms of nausea, vomiting, nervous manifestations, and hepatomegaly. Acute exposures through inhalation can cause typical metal-fume fever, chills, upper respiratory irritation, and aching muscles. Elevated urine copper levels may also occur with biliary cirrhosis, chronic active hepatitis, or Wilson disease.2 Copper poisoning through chronic exposure is rare in the general population, excepting individuals with Wilson's disease. Overexposure to copper is generally associated with industry through the inhalation of copper dust and/or fumes that arise in operations involving copper (eg, metallurgy, copper plating, soldering). Acute ingestion is a viable concern for the general population and can be precipitated by food contamination from copper utensils or the accidental or intentional ingestion of copper salts.
Specimen Requirements
Specimen
Urine (random)
Volume
5 mL
Minimum Volume
1.3 mL
Container
Plastic urine container, no preservative
Collection Instructions
Collect urine and transfer to a random urine transport tube
Stability Requirements
Temperature | Period |
---|---|
Room temperature | 14 days |
Refrigerated | 14 days |
Frozen | 14 days |
Freeze/thaw cycles | Stable x3 |
Reference Range
Environmental exposure: <50 μg/g creatinine1
Storage Instructions
Maintain specimen at room temperature.
Footnotes
LOINC® Map
Order Code | Order Code Name | Order Loinc | Result Code | Result Code Name | UofM | Result LOINC |
---|---|---|---|---|---|---|
383700 | Copper Random Urine | 133439 | Copper, Urine | ug/L | 5632-5 | |
383700 | Copper Random Urine | 723280 | Creatinine(Crt),U | g/L | 2161-8 | |
383700 | Copper Random Urine | 133448 | Copper/Crt Ratio | ug/g creat | 13829-7 | |
Order Code | 383700 | |||||
Order Code Name | Copper Random Urine | |||||
Order Loinc | ||||||
Result Code | 133439 | |||||
Result Code Name | Copper, Urine | |||||
UofM | ug/L | |||||
Result LOINC | 5632-5 | |||||
Order Code | 383700 | |||||
Order Code Name | Copper Random Urine | |||||
Order Loinc | ||||||
Result Code | 723280 | |||||
Result Code Name | Creatinine(Crt),U | |||||
UofM | g/L | |||||
Result LOINC | 2161-8 | |||||
Order Code | 383700 | |||||
Order Code Name | Copper Random Urine | |||||
Order Loinc | ||||||
Result Code | 133448 | |||||
Result Code Name | Copper/Crt Ratio | |||||
UofM | ug/g creat | |||||
Result LOINC | 13829-7 |