During mechanical ventilation of a patient with COPD, the PaCO2 = 58 mm Hg and the minute ventilation = 5.5 L/min. The desired PaCO2 for this patient is 45 mm Hg. To what should the mi-nute ventilation be changed?
a. 4.3 L/min
b. 4.8 L/min
c. 6.6 L/min
d. 7.1 L/min
ANS: D
Desired VT ??Known PaCO2 ⋅?Known VT / Desired PaCO2
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