1) A ga-eji iko silicified ma ọ bụ ngwaahịa rọba mee ọkpọkọ ọbara, sirinji na arịa plasma.
2) Akụla aka n'ihu gị tupu anakọta ọbara.
3) Nchịkọta ọbara kwesịrị ịdị nro, a ga-eji tube nke abụọ mee nyocha hem agglutination.
4) Ọnụ ọgụgụ nke sodium citrate na ọbara bụ 1: 9 (leba anya na HCT).Jiri nwayọọ tụgharịa ma gwakọta nke ọma.
5) Ihe nlele ahụ kwesịrị ịdị ọhụrụ (awa 2 na ụlọ okpomọkụ), na plasma kwesịrị ịchekwa na (-70 Celsius C) mgbe etinyere ya na friji.Na-agbaze ngwa ngwa na 37 Celsius C tupu nnwale ahụ.
6) Ọnọdụ isiokwu: mgbanwe physiological, mgbanwe nri, ihe gbasara gburugburu ebe obibi, ịṅụ ọgwụ ọjọọ, mgbatị ahụ siri ike na oge ịhụ nsọ na-abawanye ọrụ fibrinolytic, nri nwere oke abụba nwere ike ịbawanye lipid ọbara ma gbochie ọrụ fibrinolytic.Kedu ihe ọzọ, ise siga nwere ike ịbawanye nchịkọta platelet, mmiri ị drinkingụ mmanya nwere ike igbochi mkpokọta.Maka ọgwụ mgbochi ọnụ, ọ nwere ike ịbawanye ọrụ coagulation ma belata ọrụ fibrinolytic.