Copper (Serum)

Typically, a total blood copper test is ordered along with a ceruloplasmin level. If these tests are abnormal or equivocal, then they may be followed by a 24-hour urine copper test to measure copper excretion and a hepatic (liver) copper test to evaluate copper storage. Sometimes a free (unbound) blood copper test is also ordered. Genetic testing may be performed to detect mutations in the ATP7B gene if Wilson disease is suspected.

Specimen: 0.2 ml Serum

Reference Values: 

Males: 70-150 ug/dl 
Females: 80-155 ug/dl 
Dogs: 100-120 ug/dl 
Cats: 85-105 ug/dl 

Method: Photometric  

Loinc: 5631-7