
PT values are often not comparable across laboratories (due to use of different reagents).The use of prolonged N-acetylcysteine therapy - not standard when the KCC was created - has significantly lowered the complication rate and need for transplant.KCC is criticized for predicting mortality often when patients are too sick for transplant.Metabolic acidosis alone OR combined grade III or IV hepatic encephalopathy AND a PT time > 100s AND creatinine > 3.4 mg/dL predicted 77% of total deaths.


There are no worldwide standard criteria for transplantation, but the KCC are the most widely applied.Apply to all (acute or chronic) acetaminophen ingestions with signs of severe acute liver injury.The King’s College Criteria (KCC) were developed to determine which patients with fulminant hepatic failure (FHF) should be referred for liver transplant.
