Which action helps minimize exposure to sensitive abdominal organs during a routine lumbar spine radiograph?

• A. Applying tight collimation to area of interest
• B. Use shielding
• C. Increase mAs
• D. Longer exposure time

Answer: (A)

Limiting the X-ray field size to just the lumbar region is the most effective way to protect nearby sensitive organs. When you tightly collimate, you irradiate a smaller volume of tissue, which means less tissue is exposed and there’s less scatter produced that can reach abdominal organs. This directly reduces the dose those organs receive while still giving a focused image of the lumbar spine.

Shielding can provide some protection, but it isn’t as reliable for reducing dose to organs outside the primary beam in this context and can sometimes obscure anatomy or complicate positioning. Increasing the mA or extending exposure time would raise, not lower, the patient’s overall dose. So, the best practice to minimize exposure to sensitive abdominal organs during a routine lumbar spine radiograph is to apply tight collimation to the area of interest.