Your patient is being ventilated with a nasal mask to relieve dyspnea. He has a long history of chronic obstructive pulmonary disease and hypercarbia. What is the goal of noninvasive ventila-tion in this setting with regard to the ABGs?
a. Return the PaCO2 to 40 to 45 mm Hg.
b. Return the pH to near normal.
c. Return the PaCO2 to less than 60 mm Hg.
d. Return the bicarbonate level to near nor-mal.
ANS: C
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