In dietary management for mechanically ventilated patients, which nutrient is minimized?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Study for the Mechanical Vent 2 Exam 2. Prepare with flashcards and multiple-choice questions that include detailed explanations and hints. Ace your exam with confidence!

Multiple Choice

In dietary management for mechanically ventilated patients, which nutrient is minimized?

Explanation:
The key idea is that the amount of CO2 produced during metabolism depends on which macronutrient is used for energy. Carbohydrates yield more CO2 per unit of energy than fats or proteins (their respiratory quotient is highest). In patients on mechanical ventilation, minimizing CO2 production helps the ventilator work less hard and can aid weaning. Therefore, dietary plans often shift energy toward fats, with reduced carbohydrate intake, to lower overall CO2 generation. Vitamins aren’t energy sources and aren’t minimized; they’re needed for metabolism, while protein and fat are kept adequate to meet nitrogen balance and energy needs.

The key idea is that the amount of CO2 produced during metabolism depends on which macronutrient is used for energy. Carbohydrates yield more CO2 per unit of energy than fats or proteins (their respiratory quotient is highest). In patients on mechanical ventilation, minimizing CO2 production helps the ventilator work less hard and can aid weaning. Therefore, dietary plans often shift energy toward fats, with reduced carbohydrate intake, to lower overall CO2 generation. Vitamins aren’t energy sources and aren’t minimized; they’re needed for metabolism, while protein and fat are kept adequate to meet nitrogen balance and energy needs.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy