What factor during hemodialysis can alter indirect calorimetry measurements?

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 $9.99Unlock all

Prepare for the ASPEN CNSC Exam with our study tools including flashcards and multiple-choice questions. Each question is paired with hints and explanations to help you succeed. Ace your certification!

Multiple Choice

What factor during hemodialysis can alter indirect calorimetry measurements?

Explanation:
Indirect calorimetry estimates energy expenditure from O2 consumption and CO2 production. During hemodialysis, CO2 can diffuse from the blood into the dialysate and be removed by the dialysis circuit. This extra CO2 loss is not due to the body's metabolism and lowers the measured CO2 output, biasing the respiratory quotient and the calculated energy expenditure. The other factors mentioned don’t affect the gas exchange measurement through the dialysis circuit in the same direct way.

Indirect calorimetry estimates energy expenditure from O2 consumption and CO2 production. During hemodialysis, CO2 can diffuse from the blood into the dialysate and be removed by the dialysis circuit. This extra CO2 loss is not due to the body's metabolism and lowers the measured CO2 output, biasing the respiratory quotient and the calculated energy expenditure. The other factors mentioned don’t affect the gas exchange measurement through the dialysis circuit in the same direct way.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy