A client was successfully extubated after several days of sedation and mechanical ventilation and is currently receiving 40% oxygen via a face mask. While making rounds, the nurse finds the client confused and attempting to get out of bed. Current vital signs are an oral temperature 99.2°F (37.3° C), heart rate 112 beats/minutes, respirations 16 breaths/minute, blood pressure 100/70 mm Hg, and an oxygen saturation of 98%. Which intervention should the nurse implement?