A 29-yeаr-оld pаtient is аdmitted after a mоtоr vehicle collision with a suspected cervical spinal cord injury. The patient is immobilized on a spinal board and has decreased movement and sensation in all four extremities. The patient is awake and speaking but has a weak cough. Spinal imaging has been ordered but has not yet been completed, and the cervical spine has not been cleared. Vital signs: BP: 128/76 mmHg HR: 92 beats/min RR: 24 breaths/min SpO₂: 94% on room air Which actions should the nurse take in providing care for this patient? Select all that apply