Practice Question
Your client requires intensive nutrition support. The health care provider has prescribed centrally administered total parenteral nutrition (TPN). The nurse understands what to be true about TPN.
Answer Choices:
Correct Answer:
TPN therapy provides calories and spares body proteins from catabolism for energy requirements.
Rationale:
💠 TPN provides high-calorie nutrition through central venous access, preventing the body from breaking down its own muscle proteins for energy.
💠 It supplies dextrose, amino acids, lipids, electrolytes, vitamins, and minerals, all carefully calibrated to maintain nutritional balance.
💠 One major purpose of TPN is to preserve lean body mass, preventing catabolic wasting in clients who cannot use their gastrointestinal tract.
💠 TPN solutions are highly concentrated, requiring central administration to avoid vein irritation and to ensure safe osmolarity tolerance.
💠 Clients receiving TPN are at risk (not low risk) for fluid imbalance, infection, and metabolic complications.
💠 TPN must be given using an infusion pump to maintain precise, constant flow and prevent complications like hyperglycemia.
💠 The composition does not contain high insulin; insulin may be added separately depending on glucose levels.
Incorrect options
Low risk for fluid imbalance: ❌ False — TPN increases risk.
Lower concentration of dextrose & protein with high insulin: ❌ Opposite of true.
Not administered on a pump: ❌ Must ALWAYS use a pump.
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This question is from 106 Mock exam which contains 99 questions.
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Question Details
- Category: RN Nursing Exam(s)
- Subcategory: General Exams
- Domain: Medical-surgical📚
- Answer Choices: 4