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三维试验检测革兰阴性杆菌ESBLs及AmpC酶 被引量:6

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摘要 目的了解革兰阴性杆菌中产超广谱β-内酰胺酶(ESBLs)、染色体头孢菌素酶(AmpC)的分布及分离率。方法准确鉴定菌株,采用底物为头孢噻肟的三维试验,测定菌株中ESBLs及AmpC酶。结果临床分离175株革兰阴性杆菌中产ESBLs 49株,阳性率28.0%,包括阴沟肠杆菌、大肠埃希菌、克雷伯菌属、鲍曼不动杆菌、铜绿假单胞菌和弗劳地枸橼酸菌。产AmpC酶22株,阳性率12.6%,包括阴沟肠杆菌、鲍曼不动杆菌、铜绿假单胞菌、产酸克雷伯菌。其中阴沟肠杆菌产ESBLs及AmpC酶分离率均居首位(分别为55.6%、33.3%)。3株铜绿假单胞菌同时产AmpC酶和ESBLs。结论我院产ESBLs菌以阴沟肠杆菌、大肠埃希菌、肺炎克雷伯菌为主。产AmpC酶以阴沟肠杆菌、鲍曼不动杆菌、铜绿假单胞菌为主。超超广谱β-内酰胺酶(SSBLs)菌株在医院有流行。
出处 《检验医学》 CAS 北大核心 2007年第4期496-498,共3页 Laboratory Medicine
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