<prompt> In a child with acute liver failure, the most important abnormal serum biochemical test that indicates poor prognosis:Increasing transaminasesIncreasing bilirubinIncreasing prothrombin timeReversal of serum albumin-globulin ratio  <response>: C. Increasing prothrombin timeRef: Nelsons 20e p 1967Hepatic synthetic function is reflected in serum albumin and protein levels and in the PT or INRUnresponsiveness of PT to vitamin K suggests severe hepatic diseasePersistently low levels of factor VII are evidence of a poor prognosis in fulminant liver diseaseSerum aminotransferase activities do not correlate well with the severity of the illness. 