临床标本细菌分布及耐药性分析

目的了解细菌分布变迁及耐药情况。方法使用K-B纸片法进行药物敏感性试验。结果临床标本检出的阳性率为44.87%,菌株以痰、尿液和分泌物标本分离为主要来源,铜绿假单胞菌、大肠埃希菌、金黄色葡萄球菌、表皮葡萄球菌、肺炎克雷伯菌和不动杆菌属为常见菌;MRSA和MRCNS对临床药物的耐药率远比MSSA和MSCNS高,屎肠球菌对药物的敏感性普遍比粪肠球菌低,肠杆菌科细菌对亚胺培南的耐药性较低,产ESBLs的大肠埃希菌和肺炎克雷伯菌的检出率依次为23.9%、25.4%,铜绿假单胞菌对抗菌药物都表现出较高的耐药性。结论革兰阳性球菌有上升趋势,细菌的耐药性和抗菌药物的广泛使用有密切关系。

Bacteria Distribution of Clinical Specimen and Drug Resistance Analysis

OBJECTIVE To investigate the clinicl bacteria distribution and the drug resistance.METHODS The biochemical and serologic tests were used to detect the susceptibility of bacterium to antimicrobials.RESULTS The positive rate was 44.87%,bacteria distributed mainly in sputum,urine and secretion.Pseudomonas aeruginosa,Escherichia coli,Staphylococcus epidermidis,Klebsiella pneumoniae and Acinetobacter often appeared.The drug resistance rate of MRSA and MRCNS was higher than MSSA and MSCNS's.The drug sensitive rate of Enterococcus faecium was less than E faecalis's.Bacteria of Enterobacteriaceae were sensitive to the drug of imipenem.The test rate for E.coli and K.pneumoniae which released ESBLs was 23.9% and 25.4%,respectively.P.aeruginosa possessed high resistance to all drugs.CONCLUSIONS The rate of Gram-positive cocci in all specimen is rising,the drug resistance is rather related with the broad use of antimicrobials.