What is the difference between TPN and TNA?
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4 min read
While the terms are often used interchangeably in clinical practice, Total Parenteral Nutrition (TPN) is the overarching method of intravenous feeding, while Total Nutrient Admixture (TNA) is a specific formulation style. This critical distinction lies in how the nutritional components—dextrose, amino acids, and lipids—are combined before being administered to a patient.
