GPT and COVID-19: Other predictors of COVID-19 mortality include albumin, total bilirubin, Serum Glutamic Oxaloacetic Transaminase (SGOT), Serum Glutamic Pyruvic Transaminase (SGPT), nitrogen urea (p-ES), C-reactive protein (CRP), lactate dehydrogenase (LDH) and ferritin levels.