探究ICU病人血培养阳性率及其影响因素  

Analysis of ICU patients with positive blood culture rate and its influencing factors

作　　者：余超[1] 罗嫚[1] 谢东其 

机构地区：[1]云南省西双版纳傣族自治州人民医院医学检验科,云南西双版纳666100

出　　处：《世界最新医学信息文摘》2013年第9期18-19,22,共3页World Latest Medicine Information Electronic Version

摘　　要：目的探究影响ICU病人血培养阳性率的相关因素。方法对西双版纳州人民医院2011至2012年ICU病房157例曾行血培养的患者进行临床病历回顾性调查分析。应用Х^2（卡方）检验分析病人的年龄、白细胞计数、体温以及是否应用抗生素等因素对病人血培养阳性率的影响。结果2011至2012年ICU病房血培养阳性率为22．93％（36／157）。60岁以上组血培养阳性率明显高于60岁以下组（P〈0．01）。白细胞计数〉10×10^9的病人血培养阳性率明显高于白细胞计数结果正常的病人（P〈0．05）。未用抗生素者血培养阳性率明显高于用过抗生素者（P〈0．01）。结论病人的年龄、白细胞计数、体温和是否使用抗生素均会影响血培养的阳性率。年龄越大血培养阳性率越高、使用抗生素能降低血培养阳性率、体温在39℃左右时血培养阳性率最高，这要求我们要依据临床微生物学血培养操作规范在合适的采血时机及抗菌素应用之前采集血培养标本。Objective To explore the impact of ICU patients with blood culture positive rate of relevant factors.Methods People＇s Hospital of Xishuangbanna Prefecture, 2011-2012 ICU ward had 157 cases of blood culture in patients with clinical retrospective survey of medical records. This article focused on the patient＇s age, white blood cell count, body temperature and whether the application of antibiotics to patients the rate of blood culture positive, while the application ofХ^2 （chi-square） test of these factors were statistically analyzed.Result 2011-2012, the results of blood culture 157 cases, 36 cases of positive, positive rate of only 22.93% （36/157）. Over the age of 60 blood culture-positive group was significantly higher than 60 years of age group （P 〈0.01）. White blood cell count〉 10 blood culture-positive patients was significantly higher than that of normal white blood cell count results of the patients （P 〈0.05）.Antibiotics were blood culture positive rate ~ as significantly higher than those who used antibiotics （P 〈0.01）.Conclusion The patient＇s age, white blood cell count, body temperature and whether the use of antibiotics will influence the positive rate of blood culture. The older the higher of the positive rate of blood culture, the use of antibiotics can reduce the blood culture-positive rate, around 39 ℃ in body temperature when the highest rate of blood culture-positive, which requires us to be the basis of clinical microbiology blood culture practices at the right time and the blood antibiotic application Collecting blood culture specimens before.

关 键 词：血培养 影响因素 ICU 

分 类 号：R446.5[医药卫生—诊断学]