An older adult client is admitted to the psychiatric unit for assessment of a recent onset of dementia. The nurse notices that in the evening this client often becomes restless, confused, and agitated. Which intervention is most important for the nurse to implement?

Ask family members to remain with the client in the evenings from 1700 to 2100.

Administer a prescribed PRN benzodiazepine at the onset of a confused state.

Postpone administration of nighttime medications until after 2300.

Ensure that the client is assigned to a room close to the nurses' station.