Det non - ceruloplasmin plasma kobber beregnes ved at trække det ceruloplasmine- bundne kobber fra det totale plasma kobber, under forudsætning af at hvert milligram af ceruplasmin indeholder 3 mikrogram kobber.
The non-ceruloplasmin plasma copper is calculated by subtracting the ceruloplasmin-bound copper from the total plasma copper, given that each milligram of ceruloplasmin contains 3 micrograms of copper.