Final answer:
The nurse should address the UAP's failure to turn the client with a traumatic brain injury from side to side as previously scheduled.
Step-by-step explanation:
If a client with a traumatic brain injury becomes progressively less responsive to stimuli and has a 'Do Not Resuscitate' prescription, it is important for the nurse to take action. The nurse should address the UAP's failure to turn the client from side to side as previously scheduled. Turning the client is important for preventing complications such as pressure ulcers and maintaining their comfort. The nurse should speak with the UAP and remind them of the importance of providing proper care and following the client's care plan.