CRITICAL THINKING ACTIVITIES Activity 1. 51. During a routine checkup, a 40-year-old man voices questions about his potential for developing colon cancer. He relates his concerns about the recent death of his maternal grandfather from colon cancer. A. Discuss how a family history of colon cancer affects the recommendations for screening examination for this patient. B. What preventive behaviors should be included in discussion with this patient ? Activity 2 52. A 32-year-old patient is being treated with unsealed internal radiation for thyroid cancer. Identify precautions to reduce radiationn exposure to staff members who care for this patient.