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Copper in Tissues (Rhodanase Stain Test)

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

This test measures the presence of copper in your body’s tissues using a special staining method. It helps assess how well your body is handling copper, which is important for many bodily functions.

Quick summary

["This test helps diagnose conditions related to copper metabolism or storage."]

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

Key facts at a glance

LOINC
10751-6
Short code
Copper Tiss Rhodanine stain
Synonyms
Copper Tiss Rhodanine stain
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
rhodanine-stain
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 This Test Might Be Ordered

Your healthcare provider may recommend this test if you have symptoms like joint pain, skin changes, or neurological issues that could be linked to copper imbalance. It may also be used in cases of suspected Wilson’s disease or other copper-related disorders, especially when other tests like serum copper levels are inconclusive.

What to Expect Before the Test

No special preparation is typically needed for this test. You may provide a tissue sample (such as a skin biopsy) or, in some cases, a blood sample for analysis. Follow your provider’s instructions carefully.

How the Test Works

The test uses a rhodanase stain to detect copper in tissues. This involves applying a special dye that reacts with copper, allowing for visual confirmation of its presence and distribution within the sample.

What the Results Mean

Results are interpreted by comparing the staining pattern to known standards. High copper levels in tissues may indicate conditions like Wilson’s disease, while normal or low levels help rule out copper-related disorders.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Abnormal copper tissue levels can signal underlying metabolic disorders, such as Wilson’s disease, which involves copper buildup due to impaired excretion. It can also help diagnose other conditions affecting copper metabolism, such as hereditary hemochromatosis variants or copper deficiency syndromes. Early detection is key for managing symptoms and preventing complications.

Short name

Copper Tissue Analysis

Frequently asked questions

What causes copper tissue levels to be tested?
This test is often ordered if you have symptoms like chronic joint pain, skin discoloration, or neurological problems that doctors suspect may be linked to copper imbalance. It may also be used in research or specialized diagnostic settings for rare genetic disorders.
How long does it take to get results?
Results can take several days to weeks, depending on the lab’s processing time and whether additional testing is needed. Your healthcare provider will contact you once results are available.
Can lifestyle changes affect this test?
Dietary factors like copper-rich foods (e.g., organ meats, shellfish) may influence copper levels, but this test focuses on tissue levels rather than serum concentrations. Avoiding extreme dietary changes before testing is generally recommended.
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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