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COPPER, 24 HOUR URINE
Number 28
CPT Code 82525
Alias COPPER, 24 HOUR URINE
Specimen Container 24Hr Urine Container
Specimen Type 24Hr Urine without preservative
Turn Around Time
Days Performed
Reference Range <50 ug/g creatinine
Alternate Specimen
Volume 10 mL Aliquot
Stability Ambient 14 Days
Stability Refrigerated 14 Days
Stability Frozen 14 Days
Patient Preparation
Void at 8AM and discard specimen. Collect all urine for next 24 hours, including 8AM void the next morning.
Methodology
LC/MS-MS
Limitations
Increased urinary copper excretion may occur in ICC 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 coper, are needed.
Rejection Criteria
Additional Instructions
Performing Laboratory Reference Laboratory
TagsCU, METAL