GPT and Acute hepatic failure: Furthermore, three in-hospital died patients had significantly elevated LFTs with peak ALT 787 [740, 1932] IU/L, AST 3102 [1435, 3237] IU/L, ALP 318 [218, 341] IU/L, and GGT 201 [133, 273] IU/L, and two of them suffered from acute hepatic failure.