Copper, Urine (24-hour)

This test measures copper levels in a 24-hour urine sample. Copper is a mineral which plays a role in a number of bodily processes. Copper is found in a number of foods such as nuts, chocolate, shellfish, grains, and liver. Healthy copper levels contribute to energy production and nervous system function. Most copper in the body is bound to the enzyme Ceruloplasmin. Copper deficiency is rare but can be caused by malabsorption disorders such as Celiac and Cystic Fibrosis. Wilson Disease, an inherited disorder, can cause the liver to store excess copper which can lead to toxicity. Cooper exposure can also come from environmental pollution, industrial settings, or drinking water transported by aging copper pipes. Symptoms of copper toxicity include nausea, fatigue, uncontrolled shaking, loss of coordination, jaundice, and involuntary muscle contractions.

A copper urine test is usually ordered to aid in the diagnosis of Wilson Disease. It can also be ordered when a person is suspected of having copper toxicity or deficiency. Urine copper testing is typically done as a followup to irregular results on a Copper Blood Test. A Random Urine Copper Test which uses a single sample is also available.

Turnaround for this test is typically 2-3 business days