What is the Copper (Serum) test?

The Copper (Serum) test measures the concentration of copper circulating in the blood. Copper is an essential trace mineral involved in energy production, connective tissue formation, nervous system function, and iron metabolism.

In the bloodstream, most copper is bound to proteins, particularly ceruloplasmin. Measuring serum copper provides insight into overall copper status but is often interpreted alongside related markers when copper metabolism disorders are suspected.

This test is commonly used in nutritional assessment, liver disease evaluation, and investigation of inherited copper metabolism conditions.

Why do I need a Copper (Serum) test?

Both low and high copper levels can have significant health implications. Testing helps identify imbalances that may contribute to neurological, haematological, or metabolic symptoms.

You may need a Copper (Serum) test if you:

• Have unexplained fatigue or weakness
• Have anaemia not explained by iron deficiency
• Experience neurological symptoms
• Have liver disease
• Are being assessed for nutritional deficiencies
• Take supplements containing copper or zinc
• Have suspected copper metabolism disorders

Symptoms associated with abnormal copper levels may include:

• Fatigue
• Headaches
• Neurological changes
• Anaemia
• Gastrointestinal symptoms

Benefits of the Copper (Serum) test

• Assesses copper nutritional status
  Helps identify deficiency or excess.
• Supports investigation of metabolic disorders
  Relevant in copper handling abnormalities.
• Useful in liver disease assessment
  Copper metabolism is closely linked to liver function.
• Supports neurological investigations
  Copper imbalance can affect the nervous system.
• Simple blood test
  Requires only a single blood sample.
• Clinically recognised marker
  Used in standard laboratory testing.
• Supports safe supplementation decisions
  Helps guide mineral intake.
• Useful for ongoing monitoring
  Allows follow-up of copper status over time.

Step by step – how the test works

You can access Copper (Serum) testing UK-wide through two options:

1. Clinic appointment
   Choose your nearest UK clinic, where a healthcare professional will take your blood sample.
2. At-home or hotel visit (£60 extra)
   A qualified phlebotomist comes to your home or hotel, so you don’t need to travel.

Your sample is analysed in an accredited UK laboratory, and results are delivered securely.

Your results explained

Low serum copper levels

May indicate dietary deficiency, malabsorption, or excessive zinc intake.

Typical UK reference range:

• < 11 µmol/L

Normal serum copper levels

Suggest adequate copper status and normal copper metabolism.

Typical UK reference range:

• 11–25 µmol/L

High serum copper levels

May be associated with inflammation, liver disease, or disorders of copper metabolism.

Typical UK reference range:

• > 25 µmol/L

Reference ranges may vary slightly between laboratories and clinical context.