RT Book, Section A1 Miller, Sarah J. A2 Sutton, S. Scott SR Print(0) ID 7252867 T1 Chapter 33. Parenteral Nutrition T2 McGraw-Hill's NAPLEX® Review Guide YR 2011 FD 2011 PB The McGraw-Hill Companies PP New York, NY SN 978-0-07-175562-7 LK accesspharmacy.mhmedical.com/content.aspx?aid=7252867 RD 2024/04/25 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 patient is receiving both oral feedings or tube feedings (enteral nutrition or EN) and IV feedings simultaneously.