لشخص متوسط الخطورة بدون أعراض، متى يُنصح ببدء فحص سرطان القولون حسب التوصيات الحالية؟

For an average-risk adult with no symptoms, when do current recommendations advise starting colorectal cancer screening?

1. At age 70
2. At age 45
3. At age 60
4. At age 30

Answer: B) At age 45. Bodies such as the USPSTF recommend starting at 45 for average risk, earlier with strong family history or inflammatory bowel disease.