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Topics | Critical Care | How is total parenteral nutrition (TPN) given? Total parenteral nutrition (TPN) is given through a vascular access device such as a Peripheral Intravenous line, Midline or most preferably a Central Line. The central line is the most common access for TPN administration.
TPN may be given over 24 hours or over 12-14 hours depending on your nutritional needs. Most TPN patients administer the TPN infusion on a pump during the night for 12-14 hours so that they are free of the Intravenous pump during the day to do work, do errands or take care of day to day life.