What is Ceruloplasmin test?
This test measures the level of the protein ceruloplasmin in your blood. Ceruloplasmin is made in the liver and is responsible for storing and carrying copper to different parts of the body. Copper is an important mineral that your body needs to perform multiple functions such as connective tissue formation, iron metabolism, producing energy at the cellular level and making melanin.
In a healthy person, the liver binds the copper to the ceruloplasmin, which then carries copper to the tissues where it is needed. However, in a condition called Wilson disease, this copper-ceruloplasmin binding does not occur. It leads to accumulation of copper in the liver, which then overflows (via blood) to other body parts such as the brain, bones and kidneys, where it starts accumulating. Wilson disease can be fatal if not treated in time.
As most of the body’s copper is bound to ceruloplasmin, this test is ordered to diagnose disorders related to copper metabolism and storage.