A nurse in a pediatric intensive care unit is assessing a 6-month-old infant. Which of the following findings should the nurse identify as an indication of neurological impairment?

The child's oxygen saturation is 96% on room air.

The child reports pain as 8 on a scale of 0 to 10.

The child is drowsy but responds immediately to verbal stimuli.

The child's blood pressure is 100/60 mm Hg.