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Year : 2021  |  Volume : 5  |  Issue : 1  |  Page : 69-73

Serum levels of interleukin-6, ferritin, C-reactive protein, lactate dehydrogenase, D-dimer, and count of lymphocytes and neutrophils in COVID-19 patients: Its correlation to the disease severity

1 Department of Science, College of Basic Education, University of Waist, Al-Kut City, Iraq
2 Department of Nursing, Amara Technical Institute, Southern Technical University, Amara City, Iraq

Correspondence Address:
Dr. Younus Jasim Abdullah
Department of Medical Laboratory Technology, Amara Technical Institute, Al-Kahlaa Street, Amara City, Maysan Province
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/bbrj.bbrj_188_20

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Background: Since its first emergence in Wuhan city, China, severe acute respiratory syndrome coronavirus 2, which is responsible for the pandemic COVID-19, has become a significant health problem all over the world affecting over 2.1 million people globally. Methods: The current study aimed to investigate serum levels of interleukin 6 (IL-6), ferritin, C-reactive protein (CRP), lactate dehydrogenase (LDH), D-dimer as well as lymphocytes and neutrophils count in COVID-19 patients, and to clarify the correlation of these parameters with disease severity and progression. For these purposes, (100) patients with COVID-19 (confirmed by polymerase chain reaction) and (20) apparently healthy people (with matched age and sex) were included in the current study and considered as a control group. Results: All study population (patients and control) were subjected to the evaluation of serum levels of IL-6, ferritin, CRP, LDH, D-dimer, as well as lymphocytes and neutrophils, count. COVID-19 patients showed a significant elevation in the levels of all parameters included in this study when compared with healthy controls. We also found that all of IL-6, ferritin, CRP, LDH, D-dimer are significantly associated with the severity of the COVID-19 symptoms. Conclusion: Lymphopenia and increased neutrophils were also effectively correlated with disease progression. In line with these results, we concluded a proportional correlation between the aforementioned parameters and COVID-19 suggesting the uses of these tests to the diagnosis of critical cases.

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