Final answer:
The nurse should inform the patient that she has the right to read her medical record under HIPAA regulations.
Step-by-step explanation:
The best response by the nurse is to indicate that the patient has the right to read her medical record. Patients have the right to access their medical records under the Health Insurance Portability and Accountability Act (HIPAA) regulations. This allows patients to review their medical history, understand their diagnoses and treatments, and ensure accuracy in their records.