GPT and Hepatic fibrosis: The Fibrosis-4 index (Fib-4 index) is a simple marker of liver fibrosis, calculated by age, aspartate transaminase (AST) and alanine aminotransferase (ALT) levels, and platelet count [10].The Fib-4 index is also thought to be related to hepatic congestion and right atrial pressure in AHF [11].