The significance of the parenteral nutrition care model lies in providing safe and effective nutritional support for patients who are unable to eat or absorb food through the gastrointestinal tract.

Through standardized assessment, precise formulation, strict aseptic operation and continuous monitoring, it can ensure that patients obtain sufficient energy, protein and micronutrients, maintain the metabolic balance of the body, and promote tissue repair and functional recovery. This nursing model helps to reduce the incidence of infection, electrolyte imbalance and metabolic complications, and improve the safety of treatment.

Meanwhile, systematic parenteral nutrition care has strengthened nurses' abilities in intravenous access management, complication observation and health education, improving the overall quality of care and patient compliance. For critically ill, postoperative and long-term fasting patients, the parenteral nutrition care model is of great significance in improving prognosis, shortening hospital stay and enhancing quality of life.