简介: [摘要 ]目的:探究尿液分析仪潜血检验与显微镜红细胞计数检验方法在尿液潜血检验中的效果。方法:此次研究的对象是选择 2018年 1月~ 12月,医院门诊以及住院进行尿液检验的患者 1042例,来源于门诊、肾内科、泌尿外科、内分泌科等科室,均进行尿分析检查以及尿沉渣镜检,以镜检作为诊断“金标准”。结果: 1042例患者,尿镜检查其中阳性 458例,阴性 584例,尿分析仪检查敏感度、特异度、阳性预测值、阴性阴性预测值、符合率分别为 100.00%、 90.41%、 89.11%、 100.00%、 94.63%, kappa检验系数 k=.94,属于高度一致,尿分析仪与镜检结果分布 +、 ++、 +++均存在不一致情况,尿分析检查阴性结果高于尿沉渣镜检差异有统计学意义( P<0.05)。结论:尿液分析仪检查存在误漏诊情况,特别是若阳性的患者,可能误诊为阴性,需建立合适的抽检、报警规则,提高复查的水平,合理进行镜检,避免误漏诊。 [关键词 ]尿液潜血;尿液分析仪;显微镜红细胞计数 [Abstract] Objective: To explore the effect of the method of occult blood test of urine analyzer and red blood cell count test of microscope in occult blood test of urine. Methods: from January to December 2018, 1042 outpatients and inpatients from outpatient department, nephrology department, urology department, endocrinology department and other departments were selected for urinalysis and urinary sediment microscopy, with microscopy as the "gold standard" for diagnosis. Results: among 1042 patients, 458 were positive and 584 were negative. The sensitivity, specificity, positive predictive value, negative predictive value and coincidence rate of urine analyzer were 100.00%, 90.41%, 89.11%, 100.00% and 94.63% respectively. Kappa test coefficient k =. 94 was highly consistent. The distribution of urine analyzer and microscopic test results were inconsistent. The negative results were significantly higher than those of urinary sediment microscopy (P < 0.05). Conclusion: there are misdiagnosis and missed diagnosis in urine analyzer, especially in the case of positive patients, which may be misdiagnosed as negative. It is necessary to establish appropriate sampling and alarm rules, improve the level of reexamination, reasonably carry out microscopic examination, and avoid misdiagnosis and missed diagnosis.
简介: [摘要 ] 目的 研究分析尿红细胞平均体积( MCV)在血尿定位检验中的应用情况,为以后“肾小球性”及“非肾小球性”血尿的鉴别诊断提供参考。方法 采用全自动血球分析仪,对肾小球性血尿患者和非肾小球性血尿患者的尿 MCV分别进行测定,比较两组患者的 MCV测定结果。结果 经过测定和统计,肾小球性血尿患者的尿 MCV的平均值为 65.6fl,非肾小球性血尿患者的尿 MCV值为 92.4fl,两组数据经比较,差异有统计学意义( P<0.05)。结论 通过测定患者的尿红细胞平均体积尿 MCV值 [1],可以准确、灵敏地对“肾小球性”及“非肾小球性”血尿进行鉴别,能作为血尿定位检验的重要指标,值得在临床上进行推广和使用。 [关键词 ] 尿红细胞平均体积;血尿定位;应用 [Abstract] Objective To study and analyze the application of mean corpuscular volume (MCV) in the localization of hematuria, so as to provide a reference for the differential diagnosis of "renal glomerular" and "non renal glomerular" hematuria. Methods the urine MCV of glomerular hematuria patients and non glomerular hematuria patients were measured by automatic blood cell analyzer, and the results of MCV were compared between the two groups. Results the mean value of urinary MCV was 65.6fl in patients with glomerular hematuria and 92.4fl in patients without glomerular hematuria. Conclusion by measuring the mean volume of urine MCV of patients, we can accurately and sensitively distinguish "renal glomerular" and "non renal glomerular" hematuria, which can be used as an important index for localization test of hematuria, and it is worth popularizing and using in clinic.
简介:摘要配网自动化指运用多种高科技技术手段对配电网进行在线与离线的智能化监控管理,进而促进配电网安全、经济、高效的运行。带电作业则是对输配电线路监测、检修和改造的重要方法,是保证电力系统安全运行的重要保障。近几年来,配网自动化在10kV配电架空线路的设备配置、运行方式等方面的变化对配电带电作业的安全造成了严重影响,由于带电作业必须在良好天气下进行,且作业时采用了停用线路重合闸装置设施,所以遇到电压的概率不高,作业人员还未认识到电压对带电作业安全的严重影响。不过随着我国配网自动化技术的广泛运行,10kV配电架空设备逐渐变多,在设计线路时常有人为装置性违章状况的产生,例如片面注重影响线路可靠运行的因素,却忽略了其在运行和停电检修、带电作业时的影响。就此,本文做出了相关探讨。