RT Book, Section A1 Miller, Sarah J. A2 Sutton, S. Scott SR Print(0) ID 1179734878 T1 Parenteral Nutrition T2 McGraw Hill’s NAPLEX® Review Guide, 4e YR 2020 FD 2020 PB McGraw-Hill Education PP New York, NY SN 9781264258062 LK accesspharmacy.mhmedical.com/content.aspx?aid=1179734878 RD 2024/04/23 AB Parenteral nutrition (PN) involves delivery of nutrients by the intravenous (IV) route. The term total parenteral nutrition (TPN) implies that all of the patient's nutritional needs are being met by this route even though the term is often used when the patient is receiving both oral feedings or tube feedings (enteral nutrition or EN) and IV feedings simultaneously.