GPT and Hepatitis: Initial tests include a complete blood count to assess for anemia and thrombocytopenia, liver function testing (aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (ALP), bilirubin, and albumin), a coagulation profile (prothrombin time (PT), partial thromboplastin time (PTT), the international normalized ratio (INR)), renal function (blood urea nitrogen (BUN) and creatinine), arterial blood gas, and hepatitis serology.