Ceruloplasmin is a glycoprotein that is produced in the liver and it transfers or carries over 95 percent of copper in the blood plasma. Copper plays an essential function in the body by supporting vital physical processes. Which include, building connective tissue, producing energy and aiding the central nervous system function properly. A Ceruloplasmin testing is used mostly, with blood or/and urine copper tests in order to help diagnose Wilson disease, which is a rare inherited genetic disorder, coupled with extra storage of copper in the brain, liver as well as other organs along with decreased levels of Ceruloplasmin.