Your patient develops a fever while being mechanically ventilated in the control mode. As a re-sult of the fever, the patient's CO2 production increases while alveolar ventilation is unchanged
What is the probable change in ABGs?
a. Increase in PaCO2
b. Decrease in PaO2
c. Decrease in PaCO2
d. All of the above
ANS: A
Increases in A or decreases in CO2 result in a decrease in PaCO2, whereas increases in CO2 or de-creases in A result in an increase in PaCO2.
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