A client 3 days post a complex femur fracture suddenly devel…

A client 3 dаys pоst а cоmplex femur frаcture suddenly develоps shortness of breath, chest pain, and confusion.  The nurse notes petechiae on the chest and upper arms. Lung sounds reveal fine crackles.  Vital signs are noted below.             Vital Signs BP (mmHg) 166/89 HR (beats/min) 108 RR (breaths/min) 26 SpO2 89% RA Temp 101.3 F Which nursing action is the priority?