Red cell copper blood test in Chiswick
A blood test measuring copper held inside red blood cells, used by some practitioners to add detail to a mineral review when diet, high-dose zinc supplements or digestive problems may be affecting copper balance.
What the test measures
Copper is a trace mineral needed for making red blood cells, forming connective tissue, supporting the nervous system and helping the body use iron. It is found in shellfish, nuts, seeds, wholegrains and offal. Copper and zinc compete for absorption, so taking high doses of zinc for long periods is one recognised cause of low copper.
Standard NHS testing measures copper in serum, often together with caeruloplasmin, the protein that carries most copper in the blood. This test measures copper inside red blood cells, which is less affected by short-term inflammation but is not a routine NHS test. It is most useful as a complementary measure read with other results.
The price includes the sample taken at our Chiswick clinic, analysis at the Randox accredited laboratory, a practitioner review of your result, and a GP feedback report on request.
Who it is for
- You take high-dose zinc supplements and want to check that your copper balance is not affected.
- You have had weight-loss surgery or a digestive condition that may affect absorption.
- You follow a restrictive diet and are reviewing trace minerals with a practitioner.
- You have anaemia or a low white cell count that has not been explained.
- You have already had serum copper measured and would like an additional view.
Understanding your result
Your report shows your red cell copper level and the laboratory reference range. A low level may reflect low intake, poor absorption or high zinc intake. A raised level is less common and may relate to supplements or other conditions, which your practitioner will consider.
Red cell copper is not used to diagnose Wilson disease, a rare inherited condition of copper build-up, which is assessed by specialists using caeruloplasmin, urine copper and other tests. Any result outside the range is a reason for discussion with your practitioner and GP, not a diagnosis.
Preparing for your test
Fasting is not normally needed. Please let us know about any zinc, copper, iron or multivitamin supplements and their doses, as well as any digestive conditions or past surgery. If anything else is needed, we will tell you at the time of booking.
Copper is closely linked with iron, so our iron tests can be useful alongside this one. For a broader nutritional picture, see Nutritional and Digestive Health or every blood test and price in Chiswick.
Questions
How much is a red cell copper test in Chiswick?
The Red Cell Copper test costs £99. It includes the blood sample at our Chiswick clinic, analysis at the Randox accredited laboratory, a practitioner review of your result, and a GP feedback report on request.
Can zinc supplements lower copper?
Yes. Long-term high-dose zinc can reduce copper absorption. Your practitioner can review your supplement doses with you.
Does this test check for Wilson disease?
No. Wilson disease needs specialist tests. If it is suspected, your GP can arrange the right investigations.
How is red cell copper different from serum copper?
Serum copper is the routine NHS test and can rise with inflammation or the contraceptive pill. Red cell copper looks at copper inside the cells and is a complementary measure.
