首都医科大学学报 ›› 2016, Vol. 37 ›› Issue (4): 495-499.doi: 10.3969/j.issn.1006-7795.2016.04.016

• 检验医学与临床 • 上一篇    下一篇

应用CNAS CL-36标准评估HBV DNA定量检测试剂的抗干扰能力

方芳, 陈柯霖, 陈燕, 黄泽玉, 吕虹, 刘淑静, 周金, 张国军, 康熙雄   

  1. 首都医科大学附属北京天坛医院检验科, 北京 100050
  • 收稿日期:2016-04-30 出版日期:2016-08-21 发布日期:2016-07-18
  • 通讯作者: 康熙雄 E-mail:kangxx@vip.sina.com
  • 基金资助:
    北京市卫生系统高层次人才培养计划基金(2013-3-052)。

Evaluation of anti-interference capability of HBV DNA quantitative reagents according to CNAS CL-36 criterion

Fang Fang, Chen Kelin, Chen Yan, Huang Zeyu, Lyu Hong, Liu Shujing, Zhou Jin, Zhang Guojun, Kang Xixiong   

  1. Department of Clinical Laboratory, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, China
  • Received:2016-04-30 Online:2016-08-21 Published:2016-07-18
  • Supported by:
    This study was supported by the High Level Technical Talent Development of Beijing Health System(2013-3-052)

摘要: 目的 评估乙型肝炎病毒(hepatitis B virus,HBV)脱氧核糖核酸(deoxyribonucleic acid,DNA)定量检测试剂的抗干扰能力。方法 选择临界值、低值、中值和高值HBV DNA阳性血清样本,采用实时荧光定量PCR(quantitative real-time polymerase chain reaction,q-RT-PCR)技术检测1.63~17.25 g/L的血红蛋白(hemoglobin,Hb)或26.55~497.50 μmol/L的总胆红素(total bilirubin,TBIL)对HBV DNA阳性样本检测结果的干扰,依据中国合格评定国家认可委员会(China National Accreditation Service for Conformity Assessment,CNAS)CL-36中的评价标准:偏差大于等于±7.5%时,判断检测结果受到干扰。结果 当Hb浓度为7.75~17.25 g/L时,各样本均受到干扰;当Hb≤3.50 g/L时,各样本均未受到干扰。当TBIL浓度为274.60~399.15 μmol/L时,仅HBV DNA=2.24×108IU/mL的样本检测未受到干扰;当TBIL=153.55 μmol/L时,仅HBV DNA=4.62×102IU/mL的样本检测受到干扰;当TBIL=26.55 μmol/L时,各样本均未受到干扰。结论 该HBV DNA定量检测试剂具有一定的抗干扰能力:Hb≤3.50 g/L、TBIL≤26.55 μmol/L对检测结果没有影响。

关键词: 乙型肝炎病毒, 聚合酶链反应, 血红蛋白, 总胆红素, 干扰

Abstract: Objective To evaluate the anti-interference capability of hepatitis B virus (HBV) deoxyribonucleic acid (DNA) quantitative reagents. Methods HBV DNA positive serum samples with critical concentrations, low, medium and high were collected. The analysis of interference was performed in four HBV DNA positive samples with hemoglobin (Hb) ranging from 1.63 to 17.25 g/L or total bilirubin (TBIL) ranging from 26.55 to 497.50 μmol/L by quantitative real-time polymerase chain reaction (q-RT-PCR). According to criterion of China National Accreditation Service for Conformity Assessment (CNAS) CL-36, if the bias is higher than and equal to ±7.5%, there will be interference with the detection of HBV DNA. Results All of the HBV DNA positive sample were subjected to interference with Hb ranging from 7.75 to 17.25g/L, and were not subjected to interference with Hb less than or equal to 3.50 g/L. For TBIL ranging from 274.60 to 399.15 μmol/L, the sample with HBV DNA viral load 2.24×108 IU/mL was the only one without interference. For TBIL=153.55μmol/L, only the sample with HBV DNA viral load 4.62×102 IU/mL was subjected to interference. None of the HBV DNA positive sample were subjected to interference with TBIL less than or equal to 26.55μmol/L. Conclusion The HBV DNA quantitative reagent has certain anti-interference capability:there was no interference effect on HBV DNA results when Hb is less than or equal to 3.50 g/L and TBIL is less than or equal to 26.55 μmol/L.

Key words: hepatitis B virus, PCR, hemoglobin, total bilirubin, interference

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