Clinical Nutrition in Gastrointestinal Disease

Alan Buchman, MD, MSPH

Chapter 36: Parenteral Nutrition Formulas (continued)

David F. Driscoll, PhD

The safe and successful application of parenteral nutrition (PN) therapy is contingent upon prescribing reasonable amounts of nutrients in a final volume commensurate with the patient’s clinical condition. A variety of patient scenarios may dramatically alter the amounts necessary to meet metabolic demands, as the clinical condition may preclude this objective. For example, if nutrition support is indicated to support the protein synthetic response to injury (ie, during acute metabolic stress), then the amounts of energy prescribed are often hypocaloric, with greater emphasis on…