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Water, electrolytes, vitamins and trace elements - Guidelines on Parenteral Nutrition, Chapter 7
H K Biesalski1, S C Bischoff, H J Boehles
1Institute for Biochemistry und Nutrition Science, University of Stuttgart-Hohenheim, Germany.
German Medical Science : GMS E-Journal
|January 6, 2010
Summary
Calculating fluid intake for parenteral nutrition (PN) requires medical team collaboration. Monitoring electrolytes and fluid balance is crucial for safe and effective PN therapy.
Area of Science:
- Clinical Nutrition
- Internal Medicine
- Patient Care
Background:
- Parenteral nutrition (PN) requires careful management of fluid and electrolyte balance.
- Accurate calculation of fluid intake is essential for patient safety and treatment efficacy.
- Various fluid sources and losses must be considered in PN management.
Purpose of the Study:
- To outline essential considerations for calculating fluid intake in parenterally fed patients.
- To emphasize the importance of monitoring and adjusting fluid and electrolyte balance.
- To provide guidance on vitamin and trace element supplementation during PN.
Main Methods:
- Comprehensive assessment of all fluid inputs (parenteral, oral, enteral, infusions).
- Monitoring of additional fluid losses (e.g., diarrhea, vomiting).
- Regular laboratory analysis of serum electrolytes and volume status assessment.
Main Results:
- Adult fluid requirements are approximately 30-40 ml/kg/day, increasing with fever.
- Concentrated electrolyte solutions require central venous catheter administration.
- Vitamins and trace elements are generally recommended, obligatory after one week of PN.
Conclusions:
- Close medical team cooperation is vital for accurate fluid intake calculation in PN.
- Individualized electrolyte and fluid management is necessary, especially in patients with altered balance.
- Standard vitamin and trace element supplementation is recommended based on dietary reference intakes.
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