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Copper Excretion in 24 Hours

Published: July 27, 2026Updated: August 25, 2026

This biomarker measures the amount of copper excreted in urine over a 24-hour period, which is indicative of copper metabolism and nutritional status.

Quick summary

Evaluates copper excretion to assess nutritional status and metabolism.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 25, 2026Editorial policy

Key facts at a glance

Units
μmol/day
Clinical utility
diagnostic
Result kind
quantitative
FDA-cleared
Roche Copper, Abbott Copper
interpretation: {"text":"May indicate copper deficiency, which can lead to anemia, neutropenia, and bone abnormalities.","label":"Low (0–0.79 μmol/day)"}; {"text":"Suggests potential copper overload, which can be associated with liver disease, Wilson's disease, or excessive dietary intake.","label":"High (>0.79 μmol/day)"}

Copper is an essential trace element that plays a crucial role in various physiological processes, including the formation of connective tissue, iron metabolism, and the functioning of the nervous system.

The 24-hour copper excretion test helps in diagnosing conditions related to copper deficiency or overload, such as Wilson's disease, where copper accumulates in tissues.

Normal copper excretion ranges are important for maintaining health, and deviations can indicate various medical conditions or dietary issues.

Frequently asked questions

What are the symptoms of copper deficiency?
Symptoms include anemia, neutropenia, impaired growth, and bone abnormalities.
How can I manage high copper levels?
Treatment may involve dietary changes, chelation therapy, and managing underlying conditions.
  1. 1
    Copper - Health Professional Fact SheetSource
  2. 2
    Wilson's Disease - Mayo ClinicSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 25, 2026. · Read our editorial policy