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Copper, plasma

Item Value
Approval req'd? No
Available Stat? No
Test code COP
Test group Copper
Performed by UC Irvine
Sendout? Yes
Method ICP/MS
Patient Preparation The patient should refrain from taking vitamins or mineral supplements for at least one week prior to specimen collection.
Collection Instructions Click here for detailed instructions for collecting samples for Trace Metals
Container type Navy blue top (EDTA) tube
Amount to Collect 5 mL blood
Sample type EDTA Plasma
Preferred volume 1 mL plasma
Min. Volume 0.6 mL plasma
UCSF Rejection Criteria Hemolyzed samples
Processing notes Follow the detailed processing instructions for Trace Metal Analysis.

Centrifuge and separate plasma from cells within 6 hours of collection.

Pour to transfer plasma into screw-capped trace element container and ship frozen. Do NOT use a glass pipette.
Units µg/dL (mcg/dL)
Normal range
0-2 years 12-67 µg/dL
3-10 years 27-153 µg/dL
Adult males 70-140 µg/dL
Adult females 85-155 µg/dL
Synonyms Cu; Wilson's disease; Menke's disease
Stability Room temperature 1 day, refrigerated 2 weeks, frozen 6 months.
Turn around times Test run Monday-Friday. Turnaround time: 2-6 days.
Additional information To convert µg/L to µmol/L (SI units), multiply by 0.0157.

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.
CPT coding 82525-90
LOINC code 5631-7
Last Updated 12/9/2013 2:17:35 PM
Entry Number 255
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