APAP ALF — Arterial pH < 7.30 After Resuscitation

Not applicable (non-APAP etiology), or pH ≥ 7.30, or APAP not confirmed+0APAP etiology: arterial pH < 7.30 after resuscitation+1

APAP ALF — All Three: PT > 100s (INR > 6.5) + Creatinine > 3.4 mg/dL + Grade 3–4 Encephalopathy

Not applicable, or fewer than all 3 APAP criteria present+0APAP etiology: ALL 3 present — PT >100s AND Cr >3.4 mg/dL AND Grade 3–4 encephalopathy+1

Non-APAP ALF — PT > 100s (INR > 6.5) Alone

Not applicable (APAP etiology), or PT ≤ 100s+0Non-APAP etiology: PT > 100 seconds (INR > 6.5) alone+1

Non-APAP ALF — Any 3 of 5 Minor Criteria Met

Not applicable (APAP etiology), or fewer than 3 of 5 criteria present+0Non-APAP etiology: 3 or more of the 5 minor criteria present+1

King's College Criteria — Acute Liver Failure Transplant Listing