ALB and malnutrition: On day 14, the patient had slight pain around the abdominal incision. There was no abdominal distention, vomiting, or other discomfort. His spirit and sleep were good, urine was normal, and stool was unformed. His liver function results were as follows: total protein, 70.2 g/L; albumin, 36.3 g/L. He was still in the state of malnutrition and the gastrointestinal tract was not recovered. PN treatment was continued, and PN protein was increased to 87.5 g.