GPT and COVID-19: In one cross-sectional study done in China, among 417 patients diagnosed with COVID-19, 318 (76.3%) had abnormal test results, and 90 (21.5%) had a liver injury during hospitalization [20]. Another study conducted in China, involving 5771 adult patients with COVID-19, evaluated the correlation between increased levels of ALT, AST, ALP, and TBIL with all-cause mortality.