A 52-year-old woman presents to the clinic for her annual health check-up. She has no significant complaints but reports a family history of breast cancer (mother diagnosed at age 55). She is postmenopausal, has a BMI of 28 kg/m², and lives a sedentary lifestyle. Her blood pressure is 145/90 mmHg, and she has not undergone regular health screenings in the past. During the visit, the physician discusses secondary prevention as part of her healthcare plan. Which of the following is an example of secondary prevention?