Serum or plasma concentration of ceruloplasmin (metalloprotein involved in copper transport)

Why This Test Might Be Ordered

Your healthcare provider may recommend this test if you have symptoms like fatigue, abdominal pain, or neurological issues that could be linked to copper imbalance. It’s also used in diagnosing or monitoring conditions such as Wilson’s disease (a genetic disorder affecting copper), liver disease, or hemochromatosis (iron overload). If you’ve had liver problems or are taking certain medications that affect copper metabolism, this test could help track your health.

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 test if it’s part of a broader liver or metabolic evaluation. Bring any medications you’re currently taking, as some may influence results.

What to Expect During the Test

A small needle will be inserted into your arm to draw blood. You may feel a slight pinch, but it usually takes only a few minutes. The blood sample is then sent to a lab for analysis.

What the Results Mean

Results are compared to a reference range specific to your age, sex, and health status. Low ceruloplasmin levels may indicate liver disease, Wilson’s disease, or other copper-related disorders, while very high levels could suggest inflammation or certain genetic conditions. Your doctor will discuss the results in the context of your overall health.