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HelpTest Code CUUR Copper, Random Urine
Clinical Indications
Useful in the assessment of overload.
Additional Test Codes
Epic Order Name: COPPER, URINE (aka CUUR)
Sunquest Order Code: CUUR
Epic Px Code: LAB6037
Specimen Collection Type
Random urine
Minimum Collection Volume
1.0 mL
Reference Range
|
Components |
Reference Interval |
|
Copper, Urine |
0.3-3.2 µg/dL |
|
Copper Urine - ratio to CRT |
10.0-45.0 µg/gCRT |
Critical Value
n/a
Interpretation
Individuals with symptomatic Wilson disease usually excrete more
than 100 g copper per day. Other conditions associated with
elevated urine copper include cholestatic liver disease,
proteinuria, some medications, and contaminated specimens.
Although random specimens may contain diagnostic information,
24-hour collection is a more consistent indicator of elevated
copper.
Rejection Criteria
Urine collected within 48 hours after administration of a gadolinium (Gd) containing contrast media (may occur with MRI studies). Acid preserved urine.
Specimen Availability for Add-on Testing
2 Days
Specimen Stability
Refrigerated (preferred): 2 weeks
Ambient: 1 week
Frozen: 1 year
Day(s) Performed
Sun-Sat
Performing Lab - Department
TUKHS-BH-Mail Outs
CPT Code
82525
LOINC Code
Copper, Urine – per volume: 5632-5
Creatinine, Urine – per volume: 2161-8
Copper, Urine – ratio to CRT: 13829-7
Test Alias
24-hour urine copper
Copper/Creatinine Ratio, Urine
Cu
CUU
Normalized Urine Copper
Normalized Urine Cu
Additional Information / Notes
N/A