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Serum Copper Concentration

Published: August 9, 2026Updated: August 17, 2026

This test measures the amount of copper, a trace mineral essential for many bodily functions, in your blood serum. Copper helps with iron metabolism, immune function, and collagen formation.

Quick summary

["Copper levels can help diagnose or monitor conditions affecting copper metabolism or related health risks."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 17, 2026Editorial policy

Key facts at a glance

LOINC
47102-9
Short code
Copper RBC-sCnc
Synonyms
Copper RBC-sCnc
Category
chemistry
Sample
whole-blood
Container
Lavender-top (EDTA)
Units
N/A
Ref low
4.2
Ref high
5.9
Critical range
2 N/A – 7 N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
CPT
85041
SNOMED
900000000000003001
Specimen volume
3 mL
Stability
Room temperature: 4h, Refrigerated: 24h
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

Why Is This Test Done?

Your healthcare provider may order this test if you have symptoms like fatigue, hair loss, or neurological issues that could be linked to copper deficiency or toxicity. It may also be part of screening for inherited copper metabolism disorders or conditions affecting the liver, kidneys, or heart.

What to Expect Before the Test

No special preparation is usually needed. You may be asked to fast for 8–12 hours before the test if it involves a blood draw, but confirm with your provider. Wear comfortable clothing and plan for the test to be done at a lab or clinic.

What Happens During the Test?

A healthcare professional will draw blood from a vein in your arm. The process is quick and typically causes mild discomfort. The blood sample is then sent to a lab for analysis using a specialized method to measure copper concentration.

What Are Possible Results?

Results are reported as a numerical value representing copper concentration in your blood serum. Your provider will compare this to your individual reference range and clinical picture to interpret the results.

Reference range

Adult males: 4.2-5.9; Females: 3.8-5.1 x 10^12/LN/A

Specimen: whole-blood

No special preparation required. Stay well hydrated.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Copper Level (Serum)

Frequently asked questions

What does a low copper level mean?
A low copper level may suggest a deficiency due to poor diet, malabsorption, or a genetic disorder. Symptoms could include fatigue, weakness, or hair loss. Your provider may recommend dietary changes, supplements, or additional tests to identify the cause.
What does a high copper level mean?
High copper levels may indicate liver disease, kidney issues, or certain medications. They can also be linked to inherited disorders like Wilson’s disease. Symptoms may include nausea, abdominal pain, or neurological problems. Further evaluation may be needed to determine the exact cause.
Can diet affect copper test results?
Yes, certain foods high in copper (e.g., organ meats, shellfish, nuts) may temporarily raise copper levels. Avoiding these foods for a few days before testing can help provide a more accurate result. Always follow your provider’s instructions for dietary restrictions.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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 17, 2026. · Read our editorial policy