The novel coronavirus strain has rapidly infected millions across the world and has assumed the status of a global pandemic. Real-time reverse-transcription polymerase chain reaction (RT-PCR), the test for direct identification of COVID-19 virus has been well defined in many medical studies. However, there is a lack of research identifying laboratory abnormalities seen in patients infected with COVID-19. The authors of this study carried out a deep electronic search on prominent medical journal interfaces to explore the most frequent abnormalities found in COVID-19 patients with severe infection. They used keywords and scrutinized the title, abstract and main text (when available) to narrow down the search pool to their specific requirements. In-depth analysis of the 11 selected studies revealed that there was a significant difference in disease markers such as white blood cell count, neutrophil count, lymphocyte count, and blood creatinine among patients who succumbed to the infection, who required ICU admission, and those who didn’t. The authors also suggest the introduction of innovative biomarkers and coagulation tests to increase the accuracy of tests and fine-tune prognosis.