A nurse is caring for a patient on the medical stepdown unit…

A nurse is caring for a patient on the medical stepdown unit. The following data are related to this patient: Subjective Information Laboratory Analysis Physical Assessment Shortness of breath for 20 minutesFeels frightened”Can’t catch my breath” pH: 7.12PaCO2: 28 mm HgPaO2: 58 mm HgSaO2: 81% Pulse: 120 beats/minRespiratory rate: 34 breaths/minBlood pressure 158/92 mm HgLungs are clear What action by the nurse is most appropriate?