AST:ALT ratio often > 2:1; t bili, alk phos, ggt, inr, cbc may be abnormal based on extent of disease (ie if cirrhosis)
Consider ruling out other liver diseases with labs, imaging as indicated based on age, other historical features; NAFLD/NASH, chronic hep B, chronic hep C, alpha-1 anti-trypsin, hemochromatosis, auto-immune hepatitis, Wilson's disease, DILI, other