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Parenteral nutrition (PN) is indicated in the critical care unit for patients who are unable to meet their nutritional needs via enteral feeding, such as those with gastrointestinal dysfunction, severe pancreatitis, or bowel obstruction. It is also used in patients with high metabolic demands, such as those with severe burns, trauma, or sepsis, where rapid nutritional support is essential. Additionally, PN may be necessary for patients with prolonged unconsciousness or those recovering from major surgeries that affect digestive function. Careful monitoring is required to prevent complications associated with PN.

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