A patient receiving control-mode continuous mandatory ventilation has the following ABGs on an FiO2 of 0.4: pH = 7.51; PCO2 = 30 mm Hg; HCO3– = 25 mm Hg
Her current minute ventilation (VE) is 7.9 L/min. What new VE would you recommend?
a. 9.0 L/min
b. 6.7 L/min
c. 7.5 L/min
d. 5.9 L/min
ANS: D
Box 48-20 gives an example of the effect of a change in A on PaCO2.
Health Professions
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