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find Keyword "假阳性" 7 results
  • 不同消毒液对头孢美唑钠皮试阳性结果的影响

    【摘要】 目的 提高对头孢美唑钠皮试阳性结果判断的准确性,更加安全有效的使用抗生素。 方法 选择2009年8月-2011年1月对接受痔瘘手术的患者1 000例,分为组间对照组(n=500)和自身对照组(n=500)观察安尔碘和75%乙醇两种皮肤消毒液作头孢美唑钠皮试后出现的假阳性率。 结果 组间对照组及自身对照组头孢美唑钠皮试假阳性率,安尔碘为 1.6%和1.2%,75%乙醇为10.8%和9.0%。 结论 与75%乙醇比较,安尔碘能降低头孢美唑钠的假阳性率,提高使用抗生素的安全性。

    Release date:2016-08-26 02:18 Export PDF Favorites Scan
  • Comparison of Two Methods for Testing Urine Leukocyte

    目的:比较镜检法和尿液分析仪检测白细胞的差异。 方法: 用两种方法测定900例尿液标本中的白细胞,并对其结果进行比较分析。结果:两种方法检测结果有明显差异(Plt;005),以镜检法为标准,尿液分析仪检测白细胞假阳性率为169%,假阴性率为158%。结论: 检测尿液白细胞时镜检法和尿液分析仪尽量结合应用,以减少假阴性率和假阳性率,保证检验结果的准确性。

    Release date:2016-08-26 02:21 Export PDF Favorites Scan
  • Current Status and Advances of Sentinel Lymph Node Biopsy in Breast Cancer

    ObjectiveTo summarize the current status and advances of sentinel lymph node biopsy (SLNB) technique in breast cancer. MethodsThe pertinent domestic and overseas literatures were reviewed and the localization, harvest, status assessment, indications, and complications of SLNB were analyzed. ResultsSLNB could accurately locate and pick out sentinel lymph node (SLN) in breast cancer. The development on imaging examination and pathological techniques promoted the assessment of SLN, and the indications of SLNB were expanding. The complication rate of SLNB was low and the technique could accurately predict axillary lymph node staging and direct selective axillary lymph node dissection. ConclusionsSLNB has been an important method of surgical therapy in breast cancer, but the operation process needs to be further standardized to decrease the false negative rate. Continuative attentions shall be paid to the problems such as the false positive and controversial indications.

    Release date:2016-09-08 10:46 Export PDF Favorites Scan
  • 破伤风抗毒素皮试假阳性率的临床观察

    目的 分析破伤风抗毒素(TAT)皮试假阳性率的产生原因,减少TAT皮试假阳性率的发生。 方法 回顾性分析2011年12月19日-2012年1月9日159例TAT皮试患者资料,包括首次TAT皮试患者107例和外院初筛后重做TAT皮试患者52例,进行TAT皮试假阳性率的观察。 结果 52例外院初筛TAT皮试阳性的患者,重做后有44例(84.62%)结果为阴性,8例(15.38%)为阳性;首次来院做TAT皮试阳性率为9.35%,两组患者阳性率差异无统计学意义(χ2=1.271,P=0.260)。TAT皮试假阳性率与皮试液的配制、注射及观察等因素有关。 结论 TAT皮试假阳性的发生是可通过对护士标准化培训和规范化操作而避免。

    Release date:2016-09-07 02:38 Export PDF Favorites Scan
  • 三种消毒液对青霉素皮试结果影响的比较

    目的探讨青霉素皮试中,应用聚维酮碘、安尔碘和75%乙醇消毒液消毒对判断皮试结果的影响。 方法2013年3月-7月在门急诊输液患者中选择1 200例成人患者分为3组,每组400例,分别使用聚维酮碘、安尔碘、75%乙醇消毒后皮试,阳性者用生理盐水在对侧前臂做对照试验,观察有无假阳性出现。 结果聚维酮碘、安尔碘和75%乙醇作为皮试消毒液,青霉素皮试的假阳性率分别为2.45%、7.78%和9.30%,聚维酮碘低于其余2种消毒液,差异有统计学意义(P≤0.001),且安尔碘与75%乙醇差异无统计学意义(P>0.05)。 结论聚维酮碘作为青霉素皮试消毒液,可有效避免皮肤过敏导致的假阳性发生,能及时为患者医治疾病,减轻患者痛苦,缩短就医时间,在增加医疗安全的同时,又减少了医疗纠纷。

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  • Examining the false-positive results of meta-analysis of Cochrane urology group using trial sequential analysis

    Objective To detect the false-positive results of cumulative meta-analyses of Cochrane Urology Group with the trial sequential analysis (TSA). Methods The systematic reviews of Urology Group of The Cochrane Library were searched to collect meta-analyses with positive results. Two researchers independently screened literature and extracted data of included meta-analyses. Then, TSA was performed using TSA software version 0.9 beta. Results A total of 11 meta-analyses were included. The results of TSA showed that, 8 of 11 (72.7%) meta-analyses were potentially false-positive results for failing to surpass the trial sequential monitoring boundary and to reach the required information size. Conclusion TSA can help researchers to identify the false-positive results of meta-analyses.

    Release date:2017-04-24 03:30 Export PDF Favorites Scan
  • 降低感染科血培养假阳性率的品管圈实践

    目的 探讨品管圈手法在降低感染科血培养假阳性率中的效果。 方法 2015 年 3 月—10 月开展品管圈活动,2015 年 3 月采用方便抽样对血培养假阳性率现状进行调查,共抽取 56 例患者,血培养 192 例次,其中假阳性 12 例次(6.25%)。分析其原因并制定措施。 结果 2015 年 9 月再次行方便抽样抽取血培养 188 例次,其中假阳性 4 例次,假阳性率为 2.13%,活动后血培养假阳性率比活动前有所降低(χ2=4.002,P=0.045)。目标达成率为 102.74%,进步率为 65.92%,并规范了血培养操作流程和监管方式,同时也提高了临床护士用科学的方法解决问题的能力。 结论 品管圈活动在降低血培养假阳性率中有显著效果,进一步规范血培养培训制度和临床操作监管制度,对提高医疗护理质量意义重大。

    Release date:2017-11-24 10:58 Export PDF Favorites Scan
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