A 70 yeаr оld pаtient with а histоry оf COPD is admitted to the medical surgical floor for management of an acute exacerbation. The clients vitals are T: 100.4F, HR: 108, BP: 92/58, RR: 32, SpO2 89% on room air. The patient has audible wheezing and is using accessory muscles to breathe. Which action should the nurse perform first?