Inkqubo yokuqokelela iplasma ekrelekrele isebenza ngaphakathi kwenkqubo evaliweyo, isebenzisa impompo yegazi ukuqokelela igazi elipheleleyo kwikomityi ye-centrifuge. Ngokusebenzisa uxinaniso olwahlukeneyo lwamacandelo egazi, ikomityi ye-centrifuge ijikeleza ngesantya esiphezulu ukwahlula igazi, ivelisa iplasma ekumgangatho ophezulu ngelixa iqinisekisa ukuba ezinye iinxalenye zegazi azonakaliswa kwaye zibuyiselwe ngokukhuselekileyo kumnikeli.
Icwecwe, ikhaphukhaphu, kwaye ishukumiseka ngokulula, ilungele izikhululo zeplasma ezixineneyo kwindawo kunye nokuqokelelwa okuselfowuni. Ukulawulwa ngokuchanekileyo kwe-anticoagulants kwandisa isivuno se-plasma esebenzayo. Uyilo lokulinganisa umva luqinisekisa ukuqokelelwa kwe-plasma ngokuchanekileyo, kwaye ukuqaphela ngokuzenzekelayo iingxowa ze-anticoagulant zithintela umngcipheko wokubekwa kwengxowa engalunganga. Le nkqubo ikwabonisa ii-alam ezihleliweyo ezibonwayo ukuqinisekisa ukhuseleko kuyo yonke le nkqubo.
I-ASFA - izibonakaliso zokutshintshiselana ngeplasma ezicetyiswayo ziquka i-toxicosis, i-hemolytic uremic syndrome, i-Goodpasture syndrome, i-systemic lupus erythematosus, i-Guillain-barr syndrome, i-myasthenia gravis, i-macroglobulinemia, i-familial hypercholesterolemia, i-thrombotic thrombocytopenic purpura, i-autoimmune hemolytic anemia kunye nesicelo se-ASFA kufuneka sibhekiselele kwi-autoimmune hemolytic anemia, njl. izikhokelo.