(b) Prognostic index in fulminant Wilsons hepatitis (WPI) [14]

Score	0	1	2	3	4
Serum bilirubin (reference range 3–20 mmol/L)	<100	100–150	151–200	201–300	>300
Serum aspartate transaminase (reference range 7–40 IU/L)	<100	100–150	151–200	201–300	>300
Prothrombin time prolongation (seconds)	<4	4–8	9–12	13–20	>30
Patients with a WPI score ≥7 need urgent liver transplantation