2125份血液标本细菌培养及耐药性分析  

Analysis on bacterial culture and drug resistance of 2 125 blood specimen

作　　者：候素君 李建新[1] 王均梅[1] 郑楠[1] 战祥彩 

机构地区：[1]山东省日照市中医医院,山东日照276800

出　　处：《国际检验医学杂志》2015年第13期1888-1890,共3页International Journal of Laboratory Medicine

摘　　要：目的分析住院患者血培养标本中病原菌的分布及耐药性,以便指导用药,提高诊疗效果。方法对2012年11月至2014年11月日照市中医医院2 125份血液标本的细菌培养及药敏结果进行分析。结果共分离病原菌233株,阳性率为10.96%;其中革兰阳性球菌57株,占24.46%;革兰阴性杆菌174株,占74.68%。革兰阳性球菌以凝固酶阴性葡萄球菌和金黄色葡萄球菌为主,耐甲氧西林凝固酶阴性葡萄球菌(MRCNS)和耐甲氧西林金黄色葡萄球菌(MRSA)检出率分别为84.2%、40.0%,凝固酶阴性葡萄球菌和金黄色葡萄球菌对青霉素、红霉素、克林霉素的耐药率均不低于80.0%;革兰阴性杆菌以大肠埃希菌、肺炎克雷伯菌、铜绿假单胞菌为主,产超广谱β-内酰胺酶(ESBLs)大肠埃希菌和肺炎克雷伯菌检出率分别为35.85%、28.13%,大肠埃希菌和肺炎克雷伯菌对亚胺培南的敏感率均为100.0%。结论该院病原菌以革兰阴性杆菌为主,具有多重药耐药性,因此应及时送检血培养,指导临床合理用药。Objective To analyze distribution and drug resistance of pathogenic bacteria isolated from blood specimens of inpa-tients,so as to guiding the principle of clinical use of antibacterials and improve clinical efficacy.Methods The results of bacterial culture and drug sensitivity test of 2 125 blood specimens,from November 2012 to November 2014,in the Rizhao Hospital of Tradi-tional Chinese Medicine were retrospectively analyzed.Results A total of 233 strains of pathogens were isolated（the positive rate was 10.96%）,including 57 strains of gram-positive coccus（accounted for 24.46%）and 1 74 strains of gram-negative bacilli（accoun-ted for 74.68%）.The coagulase-negative staphylococci and Staphylococcus aureus were most common in gram-positive coccus,the detection rate of methicillin-resistant coagulase-negative staphylococci （MRCNS）and methicillin-resistant Staphylococcus aureus （MRSA）were 84.2% and 40.0%,respectively.The rate of drug resistance of coagulase-negative staphylococci and Staphylococcus aureus to penicillin,erythromycin and clindamycin were no less than 80.0%.The Escherichia coli,Klebsiella pneumoniae and Pseud-omonas aeruginosa were most common in gram-negative bacilli,the detection rate of extended spectrum beta-lactamases（ESBLs） producing Escherichia coli and Klebsiella pneumoniae were 35.85% and 28.13%,respectively.The sensitive rate of Escherichia coli and Klebsiella pneumoniae to imipenem were both 100.0%.Conclusion Gram-negative bacilli is the most common pathogen in this hospital and multidrug resistance is observed.Therefore,cultures of blood specimen should be timely submitted in order to guiding the rational antimicrobial application in clinic.

关 键 词：血培养 病原菌 耐药性 抗菌药物 

分 类 号：R446.5[医药卫生—诊断学]