This test measures the amount of ceruloplasmin in your blood. Ceruloplasmin is a protein

that is made in the liver. It stores and carries copper from the liver into the bloodstream and

to the parts of your body that need it.A ceruloplasmin test is most often used, along with

copper testing, to help diagnose Wilson Disease. Wilson disease is a rare genetic disorder that

prevents the body from removing excess copper. It can cause a dangerous buildup of copper

in the liver, brain, andother organs.