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Minerals & Metals

Copper Deficiency Test

Minerals & Metals

Copper Deficiency Test

Copper is an essential trace element involved in energy production, iron metabolism, nervous system function, and connective tissue formation.

195 SEK

VAT-exempt medical service

  • Results in 5 working days
  • 116 sampling locations
  • No doctor's referral needed
  • Sample: Blood (venous)
  • Laboratory: Synlab
Find a sampling location →

What does this test measure?

A copper blood test measures the level of copper in your serum. Copper plays vital roles in energy production, iron metabolism, neurotransmitter synthesis, and the formation of connective tissue. This test helps determine whether your copper levels are deficient, elevated, or within the normal range, providing important information about nutritional status, liver function, and genetic disorders related to copper metabolism.

Testing copper is important when investigating suspected deficiency due to poor nutrition, digestive disorders, or excessive zinc supplementation, which interferes with copper absorption. It is also used to monitor copper overload in conditions such as Wilson's disease, to evaluate unexplained neurological symptoms, fatigue, or anaemia, and as part of a comprehensive liver function assessment.

What a high value can mean

Elevated copper may be seen in Wilson's disease, liver disease, or chronic inflammation. Because 90-95% of serum copper is bound to ceruloplasmin (a liver-derived protein), elevated ceruloplasmin from inflammation, pregnancy, or oestrogen use can cause misleading elevations in total copper. Persistently high copper should be further investigated.

What a low value can mean

Low copper can result from malnutrition, malabsorption, genetic disorders like Menkes disease, or long-term zinc supplementation. Low ceruloplasmin may also lead to low total copper even when bioavailable copper is adequate. Symptoms of copper deficiency include anaemia, fatigue, neurological issues, and weakened connective tissue.

Read more about this marker →

Associated symptoms

  • Persistent fatigue
  • Unexplained anaemia
  • Neurological symptoms such as numbness or tingling
  • Weak connective tissue and joint problems
  • Frequent infections
  • Bone fragility
  • Changes in skin or hair pigmentation

Who should consider this test

  • Individuals with suspected copper deficiency from poor diet or malabsorption
  • People taking long-term zinc supplements
  • Patients with Wilson's disease or a family history of copper metabolism disorders
  • Those with unexplained neurological symptoms, fatigue, or anaemia
  • People undergoing treatment with copper-modifying therapies
  • Anyone needing a comprehensive liver function evaluation

Before your appointment

No special preparation is required for this test. Bring valid ID to your appointment.

  • Bring photo ID to the sampling location.
  • You do not need a doctor's referral — your referral is issued when you order.
  • Tell the staff which test you have ordered if they ask.

How it works

  1. 1

    Order your test

    Choose your test and pay online. Your lab referral is created straight away.

  2. 2

    Give your sample

    Visit any of our partner sampling locations. No appointment needed at most of them.

  3. 3

    The lab analyses it

    Your sample is analysed at an accredited Swedish laboratory.

  4. 4

    Get your results

    Your values appear in your account with reference ranges and an explanation of each marker.

Good to know

Why should copper be interpreted alongside ceruloplasmin?

90-95% of blood copper is bound to ceruloplasmin. Inflammation, pregnancy, or oestrogen use can raise ceruloplasmin and falsely elevate total copper readings. Measuring both gives a more accurate picture of your true copper status.

Can zinc supplements lower copper levels?

Yes. Zinc and copper compete for absorption in the gut. Long-term high-dose zinc supplementation can cause copper deficiency, which may lead to anaemia and neurological problems.

What is Wilson's disease?

Wilson's disease is a rare genetic disorder in which the body cannot properly excrete copper, leading to toxic accumulation in the liver, brain, and other organs. It requires lifelong treatment and monitoring.