Copper-Urine 24 hrs

Normal urinary copper excretion in a 24‑hour collection is generally low—typically under about 50 µg/24 h (some labs use up to ~60 µg/24 h as the upper limit). Values above ~100 µg/24 h are suggestive of Wilson disease; mild elevations need repeat testing and correlation with clinical findings and blood tests. Reference ranges vary by laboratory.

A 24‑hour urine copper test typically costs about $40–$200 in the United States (out‑of‑pocket), can be free when ordered through the NHS in the UK or £20–£80 privately, and commonly runs about ₹300–₹1,500 in India. Actual prices vary by lab, location, and insurance—check local labs or your provider for exact fees and coverage.

A 24-hour urine test measures substances excreted over a full day to assess kidney function, quantify protein or creatinine clearance, and detect electrolyte, mineral, or metabolic abnormalities. It helps diagnose and monitor kidney disease, proteinuria, kidney stone risk (calcium, oxalate, uric acid), and endocrine disorders (e.g., cortisol or catecholamine excess). Results guide treatment and medication adjustments.

Copper can appear in urine as normal low-level excretion after dietary absorption or minor environmental exposure. Higher urinary copper reflects increased body burden or impaired biliary excretion—classically seen in Wilson disease—or liver damage, hemolysis, certain medications or supplements, and occupational/toxic exposure. Doctors measure 24-hour urinary copper to evaluate copper metabolism disorders and monitor treatment.

Wilson’s disease is suggested by low serum ceruloplasmin (<20 mg/dL), low total serum copper with elevated non‑ceruloplasmin (free) copper, 24‑hour urinary copper excretion >100 µg/24 h, and hepatic copper content >250 µg/g dry weight (diagnostic). Values must be interpreted with clinical findings and genetic testing. Refer to a specialist for confirmatory testing.

High copper levels can cause gastrointestinal symptoms (nausea, vomiting, abdominal pain, diarrhea), metallic taste, headache and dizziness. It can injure the liver (hepatitis, cirrhosis), trigger hemolytic anemia and kidney damage. Chronic overload or Wilson disease leads to neurological and psychiatric signs (tremors, movement disorders, mood changes, cognitive decline) and eye findings. Severe poisoning can be life‑threatening and needs medical evaluation.