Neutrophil to Lymphocyte Ratio (NLR) in Predicting Severity of COVID-19 Pneumonia

Dr Vaishali Patel, Dr Jaya Pathak, Dr Pranjal Shukla, Dr Kavya Mankad, Dr Karan Pandya, Dr Radhay Parikh, Dr Priyal Kothari

Abstract: The NLR has been used for the past two decades to assess prognosis in acute and systemic inflammatory conditions. Neutrophilia and lymphopenia have individually been found to correlate with severity and outcome of COVID-19 pneumonia. NLR can act as a potential marker of deteriorating clinical condition in patients of COVID-19, thereby proving to be an important marker to use, in prospective triaging of patients in resource and time limited settings.

Keywords: Neutrophil-Lymphocyte ratio, COVID-19 pneumonia, severity, A-DROP scoring system