Mass concentration of copper in plasma (serum/plasma)

Why This Test Might Be Ordered

Your healthcare provider may recommend this test if you have symptoms like nausea, vomiting, or neurological issues that could relate to copper imbalance. It’s also used in research or specialized clinical settings to assess copper metabolism in certain genetic conditions or after exposure to high copper levels (e.g., from medications or environmental sources).

What to Expect Before the Test

No special preparation is usually needed, but you may be asked to fast for 8–12 hours before the draw if your test involves fasting-related interpretation. Wear a comfortable shirt for easy access to your arm. Bring any medications or supplements you’re taking, as they can sometimes affect results.

What Happens During the Test

A healthcare professional will insert a small needle into your arm to draw a blood sample. The process is quick and typically causes only minor discomfort. The blood is then sent to a lab for analysis using specialized techniques to measure copper concentration accurately.

What the Results Mean

Results are compared to standard reference ranges for healthy adults, though exact values can vary by lab. High levels may suggest copper toxicity or certain genetic disorders, while low levels could indicate malabsorption or liver issues. Your doctor will discuss findings in the context of your symptoms and medical history.