No fasting required.

This test measures the total amount of copper in your blood. Normally most of the copper in your blood is carried by a protein called ceruloplasmin.

 

Adults have copper in their body, mostly in muscle and the liver. Copper helps make melanin, bone, and connective tissue. It also helps with many other processes in your body. You normally get copper through your diet, in foods such as liver and other organ meats, seafood, beans, and whole grains. You get rid of copper in your bowel movements and urine.