Advantages of aerobic and anaerobic paired culture on raising positive rate of blood culture

OBJECTIVE To discuss the advantage of aerobic and anaerobic paired culture on raising the positive rate of blood culture.METHODS Two samples were collected from each patient's different sites at the same time,one was injected into an aerobic blood culture bottle,and the other was injected into an anaerobic blood culture bottle.The aerobic and anaerobic blood culture bottles were cultured by using Bact/Alert 3D cultivator and BACTEC 9120 cultivator respectively.RESULTS There were 347 isolates(9.62%) recovered from 3605 paired aerobic and anaerobic blood culture bottles,120 positive isolates(34.58%) recovered only from aerobic bottles,and 88 isolates(25.36%) recovered only from anaerobic bottles,139 isolates(40.06%) recovered from both of the two bottles.3 cases of anaerobic bacteria were recovered in 88 isolates,accounting for 0.86%.CONCLUSION Using paired aerobic and anaerobic blood culture bottles can raise the positive rate of blood culture.It is necessary to carry out anaerobic blood culture generally..