Copper Test
A copper test measures the amount of this essential trace mineral in your blood. Copper helps the body use iron and supports connective tissue and nerves, and clinicians use the marker to help evaluate copper status.
About this test
Copper is an essential trace mineral the body uses in small but important ways. It helps the body handle iron, contributes to the making of connective tissue, supports nerve health and energy production, and takes part in the body's antioxidant defenses.
The test is done with a simple blood draw at a patient service center. A phlebotomist collects a sample from a vein in the arm, and it is sent to the laboratory.
Who might consider this test?
- People often look into a copper test when a clinician is exploring how the body is handling this mineral.
Test details
| Quest code | 363 |
|---|---|
| Methodology | Inductively Coupled Plasma/Mass Spectrometry |
| Sample type | 2 mL plasma |
| Collection | Quest patient service center |
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Additional details
What this test looks at
A copper test reports how much of the mineral is present in a blood sample. Copper works quietly behind the scenes — helping the body move and use iron, build sturdy connective tissue, and keep nerves healthy — so a long-running imbalance can surface in blood counts, sensation, or energy. Measuring the circulating amount gives a clinician a reference point for whether copper belongs in the conversation.
Because most copper in the blood is bound to ceruloplasmin, the raw amount is most informative when a clinician reads it together with that carrier protein rather than in isolation.
How clinicians use copper in context
Copper is frequently interpreted alongside ceruloplasmin, and sometimes alongside zinc, because these pieces influence one another and together they tell a fuller story than any single measurement. A clinician also weighs the result against a person's diet, supplement use, digestive health, and the symptoms that prompted the test.
The measurement is meant to open a conversation with a clinician rather than to answer a question by itself. From there, a clinician decides in context whether any further evaluation is worth considering.
Order online and a physician order is included — no doctor's visit and no insurance needed. Your sample is collected at a Quest Diagnostics patient service center.
Laboratory results should always be interpreted by a licensed clinician who knows your health history. This page is information about a test, not medical advice.
Frequently asked questions
What does a copper test measure?
It measures the amount of copper in the blood. Copper is an essential trace mineral that helps the body use iron and supports connective tissue, nerves, and energy production, and the measurement reflects copper status.
Who commonly orders a copper test?
People whose clinician is exploring how the body handles copper often have it done, including those with conditions affecting absorption, a heavy zinc intake from supplements, or unexplained changes in blood counts or sensation.
How is the sample collected?
Through a routine blood draw at a patient service center. A phlebotomist takes a small sample from a vein in the arm and sends it to the laboratory for analysis.
Why is copper sometimes read with ceruloplasmin?
Most copper in the blood travels bound to a protein called ceruloplasmin, so a clinician may interpret the copper reading together with that carrier protein to make sure the two are understood in context.
Can zinc intake affect copper?
Yes. Zinc and copper are handled in a connected way, and a heavy intake of zinc from supplements can compete with copper. A clinician may consider both when reviewing a person's mineral balance.
What does a Copper test cost without insurance?
$39. Celio Health's price is a flat cash price and insurance is never billed: the required physician's order is included.