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Low-dose CT (LDCT) lung screening targets adults at sufficiently high ongoing risk. Eligibility commonly includes a defined age range, pack-year threshold, and current smoking or cessation within the past 15 years. Individuals who exceed the quit-time window (>15 years) or age out of the program should generally discontinue screening if they have no new risk factors or symptoms and would not pursue curative treatment if detected. Chest X-ray (Option C) has no mortality benefit in screening. Extending screening indefinitely (Option A) dilutes benefit-harm balance by increasing false positives, radiation exposure, and anxiety. Changing to every 3 years (Option D) is not evidence-based. The APRN’s role is to confirm personal risk factors, ensure documentation of prior screening history, engage in shared decision-making about stopping, emphasize smoking abstinence relapse prevention, and pivot to other age-appropriate preventive services (vaccinations, colorectal and abdominal aortic aneurysm screening where indicated) and symptom awareness with a clear return pathway for new respiratory complaints.