Final answer:
The nurse uses the patient's responses to care and interventions as a basis for documentation in focus charting.
Step-by-step explanation:
In focus charting, the nurse uses the patient's responses to care and interventions as a basis for documentation. Focus charting is a type of documentation that focuses on the patient's concerns, problems, or needs. It uses a structured format called DAR (Data, Action, Response) to organize the documentation.