Critical illness patients are commonly in the risk of malnutrition, because of various factors. And nutritional supplement, particularly the supplement of protein, can decrease the nitrogen balance, improve the nutritional status, accelerate the speed of healing and decrease the mortality rate. This is a multi center prospective randomized controlled trial. 180 patients with critical illness will be included and randomly divided into two groups. In the control group, patients will be fed with basic energy; and in the experiment group, the patients will be given extra protein intake except the basic energy intake. The intervention duration will last 6 days. The primary outcomes of this study are urea nitrogen of 24h and prealbumin(PA). And other outcomes include nutritional status(total protein, albumin, grip and calf circumference), safety indicators(liver function, kidney function, tolerance, etc.) and clinical indicators(overall complication rate, length of hospital stay and cost).
This is a prospective randomized controlled trial. 180 patients with critical illness will be included and randomly divided into two groups. In the control group, patients will be fed with basic energy; and in the experiment group, the patients will be given extra protein intake except the basic energy intake. The intervention duration will last 6 days. The primary outcomes of this study are urea nitrogen of 24h and prealbumin(PA). And other outcomes include nutritional status, safety indicators and clinical indicators.