检验医学 ›› 2021, Vol. 36 ›› Issue (1): 53-56.DOI: 10.3969/j.issn.1673-8640.2021.01.011

• 临床应用研究·论著 • 上一篇    下一篇

NLR、PCT、CRP联合检测对早期COVID-19的诊断价值

朱传新1, 周玉平1, 周琴2, 周桂凤3   

  1. 1.咸宁市第一人民医院检验科,湖北 咸宁 437000
    2.咸宁市第一人民医院心血管内科,湖北 咸宁 437000
    3.咸宁市第一人民医院肾内科,湖北 咸宁 437000
  • 收稿日期:2020-03-04 出版日期:2021-01-30 发布日期:2021-02-05
  • 作者简介:null

    作者简介:朱传新,男,1966年生,学士,副主任技师,主要从事免疫学和血液细胞形态学研究。

Early diagnosis value of NLR,PCT and CRP combined determination for COVID-19

ZHU Chuanxin1, ZHOU Yuping1, ZHOU Qin2, ZHOU Guifeng3   

  1. 1. Department of Clinical Laboratory,Xianning First People's Hospital,Xianning 437000,Hubei,China
    2. Department of Cardiology,Xianning First People's Hospital,Xianning 437000,Hubei,China
    3. Department of Nephrology,Xianning First People's Hospital,Xianning 437000,Hubei,China
  • Received:2020-03-04 Online:2021-01-30 Published:2021-02-05

摘要:

目的 探讨中性粒细胞/淋巴细胞比值(NLR)、降钙素原(PCT)和C反应蛋白(CRP)对早期新型冠状病毒肺炎(COVID-19)的诊断价值。方法 选取咸宁市第一人民医院230例疑似COVID-19患者,根据胸部电子计算机断层扫描(CT)、严重急性呼吸综合征冠状病毒2(SARS-CoV-2)核酸、病毒血清学抗体和血培养检测结果将患者分为COVID-19组(80例)、感冒组(100例)和细菌组(50例),比较3个组白细胞(WBC)计数、中性粒细胞绝对数(NEUT#)、淋巴细胞绝对数(LYMPH#)、淋巴细胞百分比(LYMPH%)、嗜酸性粒细胞绝对数(EO#)、NLR 、PCT、CRP水平。结果 与感冒组相比,COVID-19组NLR、CRP水平较高,LYMPH%、LYMPH#、EO#水平较低,差异有统计学意义(P<0.05)。与细菌组相比,COVID-19组LYMPH#、EO#、NEUT#、PCT、WBC计数较低,差异有统计学意义(P<0.05)。对3个组患者分层比例进行比较发现,与感冒组相比,COVID-19组患者WBC计数<4.00×109/L、LYMPH#<0.80×109/L、LYMPH%<20%、EO#<0.05×109/L、NLR>3.0、CRP≥10.00 mg/L比例较高,差异有统计学意义(P<0.05);与细菌组相比,COVID-19组患者WBC计数<4.00×109/L、NEUT#<2.00×109/L、LYMPH#<0.80×109/L、EO#<0.05×109/L比例较高,WBC计数>10.00×109/L、NEUT#>7.00×109/L、EO#>0.50×109/L、PCT≥0.50 ng/mL比例较低,差异有统计学意义(P<0.05)。结论 LYMPH#减少、PCT正常、NLR和CRP增高是COVID-19早期标志,联合检测可作为SARS-CoV-2核酸检测的补充。

关键词: 新型冠状病毒肺炎, 淋巴细胞绝对数, 中性粒细胞/淋巴细胞比值, 降钙素原, C反应蛋白

Abstract:

Objective To investigate the value of neutrophil/lymphocyte ratio(NLR),procalcitonin(PCT) and C-reactive protein(CRP) determinations in the early diagnosis of corona virus disease 2019(COVID-19). Methods A total of 230 suspected COVID-19 patients were enrolled and classified into COVID-19 group(80 cases),cold group(100 cases) and bacterial group(50 cases)according to thorax computed tomography(CT),severe acute respiratory syndrome coronavirus 2(SARS-CoV-2) nucleic acid,viral serological antibody and blood culture results. The levels of white blood cell(WBC) count,the absolute value of neutrophil(NEUT#),the absolute value of lymphocyte(LYMPH#),the percentage of lymphocyte(LYMPH%),the absolute value of easinosphils(EO#),NLR,PCT and CRP among the 3 groups were compared. Results Compared with cold group,COVID-19 group had higher levels of NLR and CRP,and the levels of LYMPH%,LYMPH# and EO# were lower(P<0.05). Compared with bacterial group,COVID-19 group had lower levels of LYMPH#,EO#,NEUT#,PCT and WBC count(P<0.05). Compared with cold group,COVID-19 group had higher proportions of WBC count<4.00,LYMPH#<0.80,LYMPH%<20%,EO#<0.05,NLR>3.0 and CRP≥10.00(P<0.05). Compared with bacterial group,COVID-19 group had higher proportions of WBC count<4.00,NEUT#<2.00,LYMPH#<0.80 and EO#<0.05(P<0.05)and lower proportions of WBC count>10.00,NEUT#>7.00,EO#>0.50,PCT≥0.50(P<0.05). Conclusions Decreased LYMPH#,normal PCT and increased NLR and CRP are early markers of COVID-19 patients. The combined determination can be used as a supplement to SARS-CoV-2 nucleic acid determination.

Key words: Corona virus disease 2019, Absolute value of lymphocyte, Neutrophil/lymphocyte ratio, Procalcitonin, C-reactive protein

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