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Copper

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Also known as: Cu; Urine Copper; Blood Copper; Free Copper; Hepatic Copper
Formal name: Copper, 24-hour urine, total and free blood, and liver (hepatic) tissue

At a Glance

Why Get Tested?

To measure the amount of copper in the blood, urine, or liver tissue; to help diagnose and monitor Wilson disease; sometimes to identify copper deficiency or excess

When to Get Tested?

When you have jaundice, fatigue, abdominal pain, behavioral changes, tremors, or other symptoms that a health practitioner thinks may be due to Wilson disease or, rarely, to copper deficiency or excess; at intervals when you are being treated for a copper-related condition

Sample Required?

A blood sample drawn from a vein in your arm and/or a 24-hour urine sample; sometimes a liver biopsy sample

Test Preparation Needed?

None