Which exposure factor should be changed to improve an image that is pale with poor anatomical detail?

Which exposure factor should be changed to improve an image that is pale with poor anatomical detail?

• A. kV
• B. mAs
• C. FFD
• D. Lead shielding

Answer: (A)

When an image is pale and shows poor anatomical detail, the underlying issue is insufficient beam penetration through the body to create adequate receptor exposure. Increasing the kilovoltage raises the beam’s energy, improving penetration across tissues and raising the amount of signal reaching the detector. This makes the image darker and allows more gray shades to appear, which helps reveal fine anatomical structures that were previously faint. While a higher kV does reduce contrast, the primary goal here is to enhance visibility of the anatomy by improving penetration and overall exposure, which is why adjusting kilovoltage is the best choice. Increasing distance or shielding would decrease exposure further, and simply raising mAs would boost exposure without improving penetration in thicker regions, so it’s less effective for this specific issue.

When an image is pale and shows poor anatomical detail, the underlying issue is insufficient beam penetration through the body to create adequate receptor exposure. Increasing the kilovoltage raises the beam’s energy, improving penetration across tissues and raising the amount of signal reaching the detector. This makes the image darker and allows more gray shades to appear, which helps reveal fine anatomical structures that were previously faint. While a higher kV does reduce contrast, the primary goal here is to enhance visibility of the anatomy by improving penetration and overall exposure, which is why adjusting kilovoltage is the best choice. Increasing distance or shielding would decrease exposure further, and simply raising mAs would boost exposure without improving penetration in thicker regions, so it’s less effective for this specific issue.