Recently, a first small case series on the application of the LiMAx-test in patients suffering from ALF due to viral hepatitis, toxic liver injury (not Amanita phalloides induced), or cryptogenic liver failure likewise provided very promising results: whereas all biochemical parameters (i.e., bilirubin, creatinine, AST, ALT, and INR) were statistically indistinct, the liver maximum functional capacity test turned out to be of prognostic relevance with full recovery after ALF for a LiMAx value >38 μg/kg/h [5]. Here, GPT is linked to animal viral hepatitis.