Which imaging exam is considered nonessential?

Which imaging exam is considered nonessential?

• A. A Chest x-ray for suspected hypertension.
• B. B Knee arthrogram for suspected Baker's cyst.
• C. C Lumbar spine x-rays for suspected spinal stenosis.
• D. D Whole-body multislice computed tomography (CT) screening.

Answer: (D)

Imaging should be guided by a specific clinical question and the likelihood that the result will change management. Whole-body multislice CT screening in people without symptoms is not justified because it exposes patients to high radiation, costs a lot, and often uncovers incidental findings that prompt more testing without proven benefit—so it’s considered nonessential. The other options involve targeted imaging that may be appropriate when there are symptoms or risk factors (for example, chest imaging to assess cardiopulmonary status in hypertension, or more specific tests like MRI/ultrasound for knee or spine problems), but broad, whole-body screening lacks a clear clinical indication.

Imaging should be guided by a specific clinical question and the likelihood that the result will change management. Whole-body multislice CT screening in people without symptoms is not justified because it exposes patients to high radiation, costs a lot, and often uncovers incidental findings that prompt more testing without proven benefit—so it’s considered nonessential. The other options involve targeted imaging that may be appropriate when there are symptoms or risk factors (for example, chest imaging to assess cardiopulmonary status in hypertension, or more specific tests like MRI/ultrasound for knee or spine problems), but broad, whole-body screening lacks a clear clinical indication.