Underlying conditions. About 2000 patients a year develop fulminant hepatic failure in the United States. The most common cause is viral hepatitis, followed by hepatotoxic drugs. A.

• 基本情况。在美国,每年大约有2000患者发生爆发性肝衰竭。最常见的原因史病毒性肝炎,其次是药物性肝炎。