Second, if the total score is ≥3 points, the patient should be given nutritional support as early as possible. It is recommended to increase protein intake by oral nutrition supplement, 2–3 times/day (≥ 18 g protein/time). In order to reach the mount of 18 g protein/time, protein powder can be added on the basis of standard whole protein preparations. Enteral nutrition tube should to be placed when the patient cannot intake supplemental nutrition by oral routine.