Hemogram parameters such as eosinophil levels, monocyte levels, neutrophil-lymphocyte ratio (NLR), and platelet lymphocyte ratio (PLR) have been investigated for diagnosis, prognosis, and severity of COVID-19 patients.[5,6] The purpose of this study was to determine whether clinical findings, complaints, eosinophil levels, C-reactive protein (CRP), lymphocyte ratio (CLR), ferritin lymphocyte ratio (FLR), and ferritin CRP ratio (FCR) can be used in the diagnosis of PE in patients with COVID-19. This evidence concerns the gene CRP and COVID-19.