Which of the following would be most appropriate for a male client with an arterial blood gas (ABG) of pH 7.5, PaCO₂ 26 mm Hg, O2 saturation 96
1) Administer a prescribed decongestant.
2) Instruct the client to breathe into a paper bag.
3) Offer the client fluids frequently.
4) Administer prescribed supplemental oxygen.