杨庆庚
【摘 要】目的:探讨定量C反应蛋白(CRP)、超敏C反应蛋白(hsCRP)与血常规联合检测在临床中的应用价值,为临床提供可靠实验室诊断指标。方法:CCRP、hsCRP用CHM-4100特定蛋白仪散射乳胶免疫比浊法定量分析,血常规用日本光电MEK-8222K五分类细胞分析仪进行分析。结果:82例细菌感染性疾病患者CRP、hsCRP异常61例,阳性率74.4%,白细胞计数>10.0×10^9个/L,中性粒细胞百分比(Neu%)>80%,阳性48例,阳性率58.5%。131例非细菌感染疾病患者CRP、hsCRP异常8例,阳性率6.1%,白细胞计数>10.0×10^9个/L, 中性粒细胞百分比(Neu%)>80%,阳性13例,阳性率9.9%。147例心血管疾病患者CRP、hsCRP异常116例,阳性率78.9%,白细胞计数>10.0×10^9个/L,中性粒细胞百分比(Neu%)>80%,阳性42例,阳性率28.6%。结论:CRP、hsCRP与血常规联合检测有助于鉴别早期细菌感染和非细菌感染及心血管疾病的预测。
【关键词】CRP、hsCRP;血常规;细菌感染性疾病;心血管疾病
Clinical application of combined detection of C reactive protein, hypersensitive C reactive protein and blood routine
of clinical laboratory, Datian Hospital of Traditional Chinese Medicine, Sanming City, Fujian 366100)
Abstract:Objective To explore the clinical application value of quantitative C-reactive protein (CRP), high-sensitivity C-reactive protein (hsCRP) and blood routine test in order to provide reliable laboratory diagnostic index for clinical practice. Methods: CCRP and hsCRP were quantitatively analyzed by the CHM-4100 specific protein analyzer and the blood samples were analyzed by the Japanese MEK-8222K cell analyzer. Results: 61 of 82 patients with bacterial infectious diseases had abnormal CRP and hsCRP, the positive rate was 74.4%, the white blood cell count was more than 10.0 *10 ^ 9/L, the percentage of neutrophils was more than 80%, and the positive rate was 58.5%. Among 131 patients with non-bacterial infections, 8 had abnormal CRP and hsCRP, the positive rate was 6.1%. Leukocyte count was more than 10.0 *10^ 9/L, neutrophil percentage (Neu%) was more than 80%, 13 were positive, and the positive rate was 9.9%. 116 cases of abnormal CRP and hsCRP were found in 147 patients with cardiovascular diseases. The positive rate was 78.9%. The white blood cell count was more than 10.0 *10 ^ 9/L. The percentage of neutrophils was more than 80%. 42 cases were positive. The positive rate was 28.6%. Conclusion: The combined detection of CRP, hsCRP and blood routine is helpful to differentiate early bacterial infection from non-bacterial infection and predict cardiovascular disease
Key words: CRP, hsCRP; blood routine; bacterial infectious diseases; cardiovascular diseases
【中圖分类号】R259 【文献标识码】A 【文章编号】1005-0019(2018)22-00-01
CRP、hsCRP是一种非特异性反应蛋白质,在细菌性感染和心血管疾病中,其含量可以成倍增加,是细菌感染敏感性指标,也是心血管疾病风险的预测因子之一。采用CRP、hsCRP与血常规联合检查,可以协助于临床医生诊断,正确合理用药。
1 资料与方法
1.1 一般资料 2017年本院住院患者360例,男200例,女160例。细菌感染组82例,非细菌感染组131例,心血管疾病组147例,所有病例均为明确诊断的住院患者。
1.2 标本采集及处理 患者入院时,采集静脉血2mL,测血常规,再测CRP、hsCRP。
1.3 检测方法 CCRP、hsCRP用CHM-4100特定蛋白仪散射乳胶免疫比浊法定量分析,血常规用日本光电MEK-8222K五分类细胞分析仪进行分析,均使用配套试剂和质控物。
2 结果
2.1 82例细菌感染性疾病患者CRP、hsCRP异常61例,阳性率74.4%,白细胞计>10.0×10^9个/L,中性粒细胞百分比(Neu%)>80%,阳性48例,阳性率58.5%。
2.2 131例非细菌感染疾病患者CRP、hsCRP异常8例,阳性率6.1%,白细胞计数>10.0×10^9个/L, 中性粒细胞百分比(Neu%)>80%,阳性13例,阳性率9.9%。
2.3 147例心血管疾病患者CRP、hsCRP异常116例,阳性率78.9%,白细胞计数>10.0×10^9个/L,中性粒细胞百分比(Neu%)>80%,阳性42例,阳性率28.6%。
3 讨论
感染性疾病是易发的常见病,当机体发生细菌感染炎症后6-8小时CRP、hsCRP即可明显上升。本实验结果表明,CRP、hsCRP在诊断细菌感染性疾病的敏感性为74.4%(61/82),而在病毒感染或非细菌感染性疾病中,CRP、hsCRP敏感性为6.1%(8/131),这也体现CRP、hsCRP在诊断细菌性感染时特异性较高,CRP、hsCRP在判断细菌感染与病毒感染中具有重要作用。CRP、hsCRP在诊断心血管疾病的因素敏感性为78.9%(116/147),CRP、hsCRP不仅是心血管疾病的预测因子,也是诊断心血管疾病的重要指标之一。
白细胞计数及分类是一种传统诊断细菌感染或病毒感染指标,本实验显示在诊断细菌性疾病时WBC比CRP、hsCRP的敏感性较低,由于影响白细胞计数升高因素较多,还有部分细菌感染时,患者白细胞计数及分类变化不显著,无法给临床提供有价值的信息。而CRP、hsCRP不受任何因素影响,是一种敏感性炎症标志物。若将白细胞计数及分类作为细菌感染主要指标,则易造成漏诊、误诊,但CRP、hsCRP可早于WBC升高,再结合血常规检查,特异性和敏感性大大提高。
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