A.革兰阴性菌≥103CFU/ml有意义B.革兰阳性菌≥103CFU/ml有意义C.革兰阳性菌≥104CFU/ml有意义D.革兰阴性菌≥104CFU/ml有意义
A.经外周静脉穿刺采集2套血培养,从导管中心或静脉留置口隔膜采血1套B.经外周静脉穿刺采集2套血培养C.从导管中心或静脉留置口隔膜采血1套D.取导管尖端5cm作培养E.经外周静脉穿刺采集2套血培养,取导管尖端5cm作培养
A.75%乙醇30s,10%碘伏60s,75%乙醇60sB.10%碘伏60s,75%乙醇30s,75%乙醇30sC.75%乙醇30s,75%乙醇30s,10%碘伏60sD.异丙醇30s,75%乙醇60s,75%乙醇30s