Reference Interval:
| Test Number
| Components
| Reference Interval
| | | Copper, Urine | 0.2-8.0 µg/dL
| | | Copper, Urine (24-hour) | 3-50 µg/d
| | | Creatinine (24-hour)
| | Male
| Female
| 3-8 years: 140-700 mg/d
9-12 years: 300-1300 mg/d
13-17 years: 500-2300 mg/d
18-50 years: 1000-2500 mg/d
51-80 years: 800-2100 mg/d
81 years and older: 600-2000 mg/d
| 3-8 years: 140-700 mg/d
9-12 years: 300-1300 mg/d
13-17 years: 400-1600 mg/d
18-50 years: 700-1600 mg/d
51-80 years: 500-1400 mg/d
81 years and older: 400-1300 mg/d
|
| | | Copper per gram of creatinine | No reference interval (µg/g crt)
|
|
| Interpretive Data: |
Individuals with symptomatic Wilson disease usually excrete more than 100 µg 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, a 24-hour collection is a more consistent indicator of copper urine.
|
| Note: |
Refer to Copper-Ceruloplasmin Index (Copper Free) (0025079) for Wilson disease screening test.
|
| CPT Code(s): |
82525
|
Cross References: |
Cu (Copper, Urine), CUU (Copper, Urine) |