Which statement correctly identifies multitarget stool DNA testing as a screening option?

Which statement correctly identifies multitarget stool DNA testing as a screening option?

• A. The multitarget stool DNA test is a colorectal cancer screening option
• B. The multitarget stool DNA test is not used for screening
• C. The multitarget stool DNA test replaces colonoscopy
• D. The multitarget stool DNA test detects only blood

Answer: (A)

Screening for colorectal cancer includes noninvasive stool-based tests, and multitarget stool DNA testing fits this role. It analyzes multiple DNA markers associated with colorectal cancer and precancerous polyps and also uses a hemoglobin test to detect occult blood, which together improve detection. This test is intended for screening—the goal is to identify disease in people without symptoms—rather than to diagnose an existing cancer. If the test is positive, a follow-up colonoscopy is required to confirm and locate any lesions. It does not replace colonoscopy as the definitive diagnostic procedure, and it is not limited to detecting only blood; the DNA markers provide the added sensitivity. Hence, identifying multitarget stool DNA testing as a colorectal cancer screening option is correct.

Screening for colorectal cancer includes noninvasive stool-based tests, and multitarget stool DNA testing fits this role. It analyzes multiple DNA markers associated with colorectal cancer and precancerous polyps and also uses a hemoglobin test to detect occult blood, which together improve detection. This test is intended for screening—the goal is to identify disease in people without symptoms—rather than to diagnose an existing cancer. If the test is positive, a follow-up colonoscopy is required to confirm and locate any lesions. It does not replace colonoscopy as the definitive diagnostic procedure, and it is not limited to detecting only blood; the DNA markers provide the added sensitivity. Hence, identifying multitarget stool DNA testing as a colorectal cancer screening option is correct.