检验医学 ›› 2021, Vol. 36 ›› Issue (3): 352-356.DOI: 10.3969/j.issn.1673-8640.2021.03.025

• 综述与讲座 • 上一篇    

SARS-CoV-2实验室核酸检测要点

刁艳君, 杨柳, 苏明权, 郝晓柯, 刘家云()   

  1. 空军军医大学第一附属医院检验科,陕西 西安 710032
  • 收稿日期:2020-04-20 出版日期:2021-03-30 发布日期:2021-03-30
  • 通讯作者: 刘家云
  • 作者简介:刘家云,E-mail:jiayun@fmmu.edu.cn
    刁艳君,女,1986年生,博士,主治医师,主要从事分子诊断研究。

Key points for the nucleic acid detection of SARS-CoV-2

DIAO Yanjun, YANG Liu, SU Mingquan, HAO Xiaoke, LIU Jiayun()   

  1. Department of Clinical Laboratory,Xijing Hospital,Air Force Military Medical University,Xi'an 710032,Shaanxi,China
  • Received:2020-04-20 Online:2021-03-30 Published:2021-03-30
  • Contact: LIU Jiayun

摘要:

严重急性呼吸综合征冠状病毒2(SARS-CoV-2)可引起新型冠状病毒肺炎(COVID-19),目前已在全世界广泛流行。作为SARS-CoV-2的确诊方法,实时荧光逆转录聚合酶链反应(RT-PCR)核酸检测成为广受关注的热点技术。文章针对SARS-CoV-2的生物学特性,核酸检测的原理、意义、条件、防护以及结果判读进行综述,并对实验室核酸检测假阴性和复检阳性的原因给予了解释。

关键词: 严重急性呼吸综合征冠状病毒2, 核酸检测, 假阴性, 复检阳性

Abstract:

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) can cause corona virus disease 2019(COVID-19)and has become a global pandemic. As direct diagnostic evidence of COVID-19,nucleic acid detection based on reverse transcription-polymerase chain reaction(RT-PCR)has become a hot technique and has been pushed to the forefront of virus prevention and control. However,problems such as high false-negative rate and retest positive rate gradually appear along with the cognition of nucleic acid detection. This review focuses on the biological characteristics of SARS-CoV-2 and the principle,significance,condition,protection and result interpretation of the nucleic acid detection. Furthermore,it also supplies explanations for the false-negative and retest positive problems.

Key words: Severe acute respiratory syndrome associated coronavirus 2, Nucleic acid determination, False negativity, Retest positivity

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