降钙素原、C反应蛋白和白细胞计数联合检测在儿童呼吸道感染中的诊断价值

目的探讨降钙素原(PCT)、C反应蛋白(CRP)和白细胞计数(WBC)联合检测在儿童呼吸道感染中的诊断价值。方法选择2014年1月至2015年6月该院儿科住院的呼吸道感染儿童358例,根据咽拭子或痰培养结果分为细菌感染组和非细菌感染组,在治疗前后采集静脉血分别进行PCT、CRP检测和WBC计数;同时随机抽取30例健康儿童作为对照组。结果细菌感染组与非细菌感染组及对照组相比,PCT、CRP、WBC水平明显增高(P0.01);非细菌感染组与对照组相比,PCT、CRP、WBC水平比较接近(P0.05);而治疗1周后的细菌感染组PCT、CRP、WBC水平与治疗前相比明显降低(P0.01),非细菌感染组与治疗前相比PCT、CRP、WBC水平变化不大(P0.05)。结论 PCT、CRP、WBC水平联合检测对儿童呼吸道感染的鉴别诊断及指导用药具有重要的应用价值。

Diagnostic value of combined detection of procalcitonin,C reactive protein and white blood cell count in children with respiratory tract infection

Objective To investigate the diagnostic value of procalcitonin (PCT) ,C‐reactive protein(CRP) and white blood cell (WBC) count in children with respiratory tract infection .Methods A total of 358 children inpatients with respiratory tract infec‐tion in the pediatric department of our hospital from 2014 January to June 2015 were selected and divided into the bacterial infection group and non‐bacterial infection group according to the throat swabs and sputum culture results .The venous blood was collected before and after treatment for detecting PCT ,CRP and WBC count ;meanwhile 30 healthy children were selected as the control group .Results The PCT ,CRP and WBC levels in the bacterial infection group were significantly increased compared with the non‐bacterial infection group and control group(P<0 .01) ,while which in the non‐bacterial infection group were relatively close to those in the control group(P>0 .05);but the PCT ,CRP and WBC count levels after 1‐week treatment in the bacterial infection group were significantly decreased compared with before treatment (P<0 .01) ,while which in the non‐bacterial infection group had little change between before and after treatment (P>0 .05) .Conclusion The combined detection of PCT ,CRP and WBC count has an important application value in the differential diagnosis and medication guidance of the children′s respiratory tract infection .