Discriminant Function = 4.6 * (Prothrombin Time (seconds) - Control Time (seconds)) + Serum Bilirubin (mg/dL) (1)
A discriminant function > 32 indicates severe alcoholic hepatitis.
A clinician's judgement can not be replaced by a computer's analysis.
Ask your local lab about control time and prothrombin time. Usually, it's 13-14.