A 24-year-old college student with nausea, vomiting, and jau…

A 24-year-old college student with nausea, vomiting, and jaundice has the following laboratory findings: Total serum bilirubin  9.2 mg/dL Direct serum bilirubin  7.1 mg/dL Urine urobilinogen  Increased Urine bilirubin  Positive AST  200 U/L (normal 0-50  U/L) ALP  160 U/L (normal 42-128 U/L)