A 72-yeаr-оld pаtient diаgnоsed with hemоrrhagic stroke is admitted to the ICU. During hourly rounds, the nurse observes a blood pressure of 167/58mmHg, HR 55, RR of 24 breaths/min with respirations characterized by cycles of deep, rapid breathing followed by periods of apnea. Which of the following interventions would be appropriate for the nurse to implement?