Ethylenediamine tetraacetic aside (EDTA, uburemere bwa molekuline 292) n'umunyu wacyo ni ubwoko bwa aside amine polycarboxylic aside, ishobora gukonjesha neza ioni ya calcium mu byitegererezo by'amaraso, chelate calcium cyangwa ikanakuraho ikibanza cya calcium, kizahagarika kandi gihagarika coagulation ya endogenous cyangwa exogenous. inzira, kugirango wirinde ko amaraso atabaho.Irakoreshwa mubizamini rusange bya hematologiya, ntabwo ari ibizamini bya coagulation hamwe na test ya mikorere ya platel, cyangwa no kumenya calcium ion, potasiyumu ion, sodium ion, fer ion, alkaline fosifata, creatine kinase na leucine aminopeptidase na PCR.
Harimo heparin cyangwa lithium mu muyoboro ushobora gushimangira ingaruka za antithrombine III idakora proteine serine, kugirango wirinde gukora trombine no kwirinda ingaruka zitandukanye za anticagulant.Mubisanzwe, 15iu heparin anticoagules 1ml yamaraso.Umuyoboro wa Heparin ukoreshwa muri biochemiki yihutirwa no kwipimisha.Mugihe cyo gupima amaraso, sodium ya heparin ntishobora gukoreshwa kugirango wirinde kugira ingaruka kubisubizo.
Ubwinshi bwa sodium citrate isabwa na ESR ni 3.2% (bihwanye na 0.109mol / L).Ikigereranyo cya anticoagulant n'amaraso ni 1: 4.