Why is total parenteral nutrition commonly infused through a central venous catheter?
Correct answer: B. It allows administration of hypertonic solutions
- A. It prevents all catheter-related infections
- B. It allows administration of hypertonic solutions
- C. It eliminates the need to monitor blood glucose
- D. It allows the patient to eat less frequent meals
Explanation
TPN is highly concentrated and may irritate small peripheral veins, so a central vein is used for rapid dilution by the larger blood flow. Central access does not remove the risks of infection or glucose abnormalities.
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About Nutrition, Fluids and Electrolytes
Coverage includes nutrients and balanced diets, therapeutic feeding, enteral and parenteral nutrition, intake and output, dehydration, fluid overload and fluid balance calculations. Questions also examine sodium, potassium, calcium and chloride disturbances, their signs and nursing care, while distinguishing enteral feeding through the gastrointestinal tract from parenteral nutrition.
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50 free Nutrition, Fluids and Electrolytes MCQs from Fundamentals of Nursing, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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