Which statement best describes an advantage of colonoscopy?

• A. Can detect, remove, and biopsy in one go.
• B. Requires sedation, extensive prep, time off work.
• C. Risk of perforation and bleeding.
• D. No preparation needed.

Answer: (A)

Colonoscopy offers diagnostic visualization plus immediate therapeutic actions in one session. The main advantage is that a doctor can identify abnormalities, remove polyps, and obtain biopsy samples right during the same procedure. This makes screening and treatment more efficient, can prevent progression to cancer by removing precancerous polyps, and avoids the need for separate follow-up visits for removal or biopsy.

The other statements describe drawbacks or risks of the procedure or are inaccurate (sedation and bowel prep are typically required, there is a risk of perforation and bleeding, and no preparation is not true).