Table 1. Indication criteria for liver transplantation in patients with acute liver failure of various causes^*.

Criteria	Indications
King’s College criteria	Prothrombin time >100 sec (= Quick <7% or inr >6.7)
	or at least three of the following:
	Unfavorable etiology (cryptogenic hepatitis, halothane hepatitis, drug toxicity)
	Icterus more than 7 days before encephalopathy
	Age <10 years or >40 years
	Prothrombin time >50 sec (= Quick <15% or inr >4)
	Serum bilirubin >300 µmoL/L (>17.5 mg/dL)
Special criteria for paracetamol toxicity	Arterial pH <7.3
	or all three of the following:
	Prothrombin time >100 sec (= Quick <7% or inr >6.7)
	Creatinine >300 mmoL/L (>4 mg/dL)
	Encephalopathy grade 3 or 4
Clichy criteria (in recipients with viral hepatitis)	Encephalopathy grade 3 or 4
	and
	Factor V <20% in recipients <30 years
	or
	Factor V <30% in recipients >30 years

^*Modified from (e31)