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Mass concentration of copper in serum/plasma (total serum copper)

Published: August 9, 2026Updated: August 16, 2026

This test measures the amount of copper present in your blood serum or plasma. Copper is an essential mineral that plays a role in many bodily functions, including the production of red blood cells and the metabolism of iron.

Quick summary

["Your blood copper levels help assess your body’s copper balance and overall health."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
78853-9
Short code
m-CPP Fld-mCnc
Synonyms
m-CPP Fld-mCnc
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

Why Is This Test Done?

Your healthcare provider may order this test to check for copper deficiency, which can occur due to conditions like liver disease, malabsorption disorders, or certain medications. It may also be used to monitor copper levels in people with inherited copper metabolism disorders or those receiving copper supplements. Additionally, elevated copper levels might be investigated in cases of Wilson’s disease or other copper-related disorders.

What Does the Result Mean?

Low copper levels might suggest nutritional deficiencies, liver problems, or conditions that interfere with copper absorption. High levels could indicate liver disease, Wilson’s disease, or other metabolic issues. However, reference ranges can vary, so your results will be interpreted by your doctor in the context of your overall health.

Common Conditions Monitored

This test is often used to monitor copper metabolism disorders, such as Wilson’s disease, where the body fails to properly regulate copper. It may also help diagnose or manage conditions affecting copper absorption or storage, like cirrhosis or certain genetic disorders.

Sample Collection and Preparation

A blood sample is drawn from a vein in your arm. The sample is collected in a tube that separates serum (the liquid part) or plasma (the liquid part after clotting factors are removed). The sample is then sent to a lab for analysis using a high-performance liquid chromatography (HPLC) method to measure copper concentration accurately.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Serum copper

Frequently asked questions

What factors might affect my copper levels?
Several factors can influence copper levels, including diet (especially copper-rich foods like organ meats, shellfish, and nuts), liver function, kidney disease, certain medications (like antibiotics or antacids), and underlying health conditions like Wilson’s disease or malabsorption syndromes. Your doctor may also consider your medical history and other test results when interpreting your results.
How often should I get this test?
The frequency of this test depends on your medical condition and treatment plan. If you have a known copper-related disorder, your doctor may recommend regular monitoring. Otherwise, this test is typically ordered as needed for specific symptoms or investigations.
Can I prepare for this test?
No special preparation is usually required for this blood test. However, avoid consuming large amounts of copper-rich foods for 24 hours before the test if instructed by your doctor, as this could affect results.
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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 16, 2026. · Read our editorial policy