GPT and chronic kidney disease: BUN: blood urea nitrogen; SGOT: serum glutamic-oxaloacetic transaminase; AST: aspartate aminotransferase; SGPT: serum glutamic-pyruvic transaminase test; ALT: alanine aminotransferase; eGFR: estimated glomerular filtration rate; PT: prothrombin time; INR: international normalized ratio; PTT: partial thromboplastin time; CK: creatine kinase; CKD-EPI: Chronic Kidney Disease Epidemiology Collaboration; Cr: creatinine