Mrs. Ford, a 78-year-old retired teacher, presents with increasing restlessness, muscle tension, insomnia, and persistent worry following her husband's recent cancer diagnosis. She lives alone and reports that her thoughts "won't shut off at night." Her history includes hypertension, osteoporosis, and mild cognitive impairment (MCI). Medications include lisinopril and calcium/vitamin D. A primary care provider diagnoses late-onset generalized anxiety disorder (GAD).
As the nurse collaborates on her care plan, which intervention is most appropriate based on safety, effectiveness, and age-related considerations?