Final answer:
When a child with a head injury is documented as obtunded, the nurse would expect to observe limited responsiveness and drowsiness.
Step-by-step explanation:
When a nurse notices that the level of consciousness has been documented as obtunded in a child with a head injury, the nurse would expect to observe limited responsiveness and drowsiness during data collection. The child may be difficult to wake up when asleep and may have a decreased level of awareness and alertness. This state of altered consciousness is characterized by a dulled mental state, reduced arousal, and delayed responses to stimuli.