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Copper, 24 hour urine
|Collection Instructions||Click here for detailed instructions for collecting samples for Trace Metals|
|Container type||Acid washed 24 hour urine collection container
Click here for Urine Preservative Requirements
|Amount to Collect||Entire 24 hour urine output|
|Sample type||24 hour urine collection|
|Preferred volume||7 mL urine|
|Min. Volume||3 mL urine|
|Processing notes||Follow the detailed processing instructions for Trace Metal Analysis.
Record total volume of urine received and write on request. Be sure the urine is mixed well before transferring to the shipping container. To avoid contamination, carefully pour the designated amount of urine directly from the collection container into the acid wash shipping container.
Prepare two (2) aliquots, save (1) for storage, discard after 1 week. Refrigerate aliquots.
For 24 hour urine Order Quest # 365. For random urine order Quest # 86579N
|Ref Lab Rejection Criteria||Hemolysis or fecal contamination.|
|Normal range||15-60 µg/24 hours|
|Synonyms||Cu; Wilson's disease; Menke's disease|
|Stability||Room temperature 5 days, refrigerated 2 weeks, frozen at -20C 1 month.|
|Turn around times||Test run Tuesday-Saturday. Turnaround time: 2-5 days.|
|Additional information||To convert µg/L to µmol/L (SI units), multiply by 0.0157.
Levels are high in most symptomatic patients but false-positive results can occur in obstructive liver disease.
Copper is an essential element that is a cofactor of many enzymes. Copper metabolism is disturbed in Wilson's disease, Menkes disease, primary biliary cirrhosis, and Indian childhood cirrhosis. Urinary copper concentrations are also useful to monitor patients on chelation therapy.
|Last Updated||3/24/2013 7:48:02 PM|