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What does a caregiver need to know to calculate a patients dead space (VD) without body plethysmography?



A. The change in the amount of Helium.
B. The change in the amount of Nitrogen.
C. The PaCO2
D. The average PetCO2
E. The average PetO2

This question is part of Respiratory Therapy Quiz
Asked by Jcrubino, Last updated: Mar 27, 2020

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jcrubino

Jcrubino

Answered Apr 16, 2018

The PaCO2
The average PetCO2

Arterial carbon dioxide and average exhaled carbon dioxide are needed to calculate the dead space to tidal volume ratio.
 

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