Ohio General X-Ray Machine Operator (GXMO) Practice Exam

Increasing kVp, field size, and part thickness will result in

Decreased scatter fog No change in scatter Increased image sharpness Increased scatter fog

Correct Answer:

Increased scatter fog

Explanation:

Increasing the beam energy, irradiated area, and patient thickness all boost the amount of scatter radiation produced and reaching the image receptor. Higher kVp makes photons more energetic, which shifts interactions toward Compton scatter; more scatter produced means more of it arrives at the detector as fog, lowering image contrast. A larger field irradiates more tissue, giving more opportunities for scatter events and thus more scatter reaching the detector. Greater part thickness lengthens the photon’s path through tissue, increasing the likelihood of scatter as photons traverse the material. The combined effect is increased scatter fog on the image, which degrades contrast and does not improve sharpness.

Access more questions from this quiz

Continue to Ohio General X-Ray Machine Operator (GXMO) Practice Exam for more practice questions and the full quiz experience.

Access More Questions