Identifying Complications from TPN Therapy

A nurse is monitoring a patient who has been receiving Total Parenteral Nutrition (TPN) for three days due to severe malnutrition. The TPN mixture includes dextrose, amino acids, and lipids. During the assessment, the nurse observes that the patient is experiencing fever, chills, and elevated white blood cell count. Considering these findings, which potential complication should the nurse suspect related to TPN therapy?