Copper is an important trace element in the blood and a component of numerous enzymes and proteins involved in energy production, connective tissue formation, melanin synthesis, iron metabolism, development of central nervous system, formation of new blood vessels (angiogenesis) and antioxidants. Serum Copper test measures the amount of copper present in your blood, thereby aiding in diagnosis of various conditions related to copper deficiency or toxicity. Elevated levels of serum copper can lead to excess deposition of copper in various organs including liver and brain which can directly or indirectly lead to many disorders like Wilson’s disease, Acute renal failure, and Chronic liver disease. Whereas insufficient levels can lead to malnourishment, cardiovascular disease, anemia & neuropathy. Copper levels may also be checked to monitor preterm newborns on nutritional supplementation.