The all-in-one nutrient solution in parenteral nutrition

Area of Science:

• Parenteral Nutrition
• Biochemistry
• Clinical Nutrition

Background:

• Total nutrient admixture (TNA) solutions combine dextrose, lipids, amino acids, electrolytes, vitamins, and trace elements for intravenous feeding.
• Stability and safety of TNA solutions are critical for effective patient care.

Purpose of the Study:

• To assess the stability and safety of 10 different TNA formulations.
• To evaluate the clinical efficacy of TNA in patients requiring nutritional support.

Main Methods:

• Preparation and storage of 10 TNA solutions at 4°C for 14 days.
• Analysis of pH, osmolality, and lipid particle size distribution.
• Microbiological cultures to assess sterility.
• Clinical administration of 5101 TNA infusions to 243 patients.

Main Results:

• TNA solutions exhibited stable pH and osmolality during storage.
• Lipid particle sizes remained within acceptable ranges, with no large particles observed.
• Microbiological cultures were consistently negative, indicating sterility.
• Patients receiving TNA for over one week showed improved nitrogen balance.
• Serum transferrin and albumin levels increased with TNA treatment exceeding two weeks.
• No adverse reactions or abnormal laboratory findings were reported in patients.

Conclusions:

• The prepared TNA solutions are stable and safe for intravenous administration.
• TNA effectively supports nutritional requirements, leading to improved nitrogen balance and protein status.
• Long-term TNA administration is well-tolerated and can maintain patient health, even in complex cases.