Usoro nchịkọta plasma nwere ọgụgụ isi na-arụ ọrụ n'ime usoro mechiri emechi, na-eji mgbapụta ọbara na-anakọta ọbara dum n'ime iko centrifuge. Site n'iji njupụta dị iche iche nke ihe mejupụtara ọbara, iko centrifuge na-agba ọsọ na oke ọsọ iji kewaa ọbara, na-emepụta plasma dị elu ma na-ahụ na ihe ndị ọzọ dị n'ọbara adịghị emebi emebi ma weghachi onye nyere onyinye ahụ n'enweghị nsogbu.
Kọmpat, dị arọ ma dịkwa mfe ibugharị, ọ dị mma maka ọdụ ụgbọ mmiri plasma nwere oghere na mkpokọta mkpanaka. Ijikwa ọgwụ mgbochi mgbochi nke ọma na-abawanye mkpụrụ nke plasma dị irè. Nhazi nha n'azụ na-eme ka nchịkọta plasma ziri ezi, yana njirimara akpaka nke akpa mgbochi mgbochi na-egbochi ihe ize ndụ nke itinye akpa na-ezighi ezi. Sistemu ahụ na-egosipụtakwa mkpu odiyo-ọhụụ nwere akara akara iji hụ na nchekwa n'oge usoro a.
ASFA-atụ aro mgbanwe mgbanwe plasma na-egosi na-agụnye toxicosis, hemolytic uremic syndrome, Goodpasture syndrome, systemic lupus erythematosus, Guillain-barr syndrome, myasthenia gravis, macroglobulinemia, familial hypercholesterolemia, thrombotic thrombocytopenic purpura, autoimmune hemolyfisk ndụmọdụ, wdg. Ndị dọkịta na ASFA ntuziaka.