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Postoperative colonoscopic surveillance aims to detect metachronous neoplasia and anastomotic recurrence. If a high-quality colonoscopy was completed before surgery, the first surveillance colonoscopy is recommended at 1 year after resection. If the preoperative exam was incomplete because of obstruction or poor prep, perform colonoscopy within 3–6 months post-op to clear the colon. When the 1-year exam is normal, the next interval is generally at 3 years, then every 5 years, adjusting for findings (e.g., adenomas requiring shorter intervals) and patient factors. Routine 6-month colonoscopy (Option A) is unnecessary when baseline is complete. Stopping surveillance (Option C) overlooks ongoing risk. Annual colonoscopy indefinitely (Option D) increases burden without benefit in average-risk postoperative patients with negative exams. The APRN should ensure recall systems are set, review pathology to tailor intervals, counsel on lifestyle risk reduction (tobacco cessation, diet, physical activity), and coordinate CEA imaging/lab surveillance as indicated by stage and guidelines.