Which of the following factors will cause inaccurate calorimetry measurements on a mechanically ventilated patient?
a. FIO2 >0.5 c. Room temperature = 23° C
b. Varying pressure d. Heat and moisture exchanger
ANS: A
Clinical studies have demonstrated that currently available systems cannot provide accurate and reproducible oxygenation consumption per minute (O2) measurements for patients breathing FIO2s greater than 0.5.
Health Professions
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