If a small adult's 24-cm thick abdomen requires 20 mAs to produce the appropriate level of radiation reaching the IR, how much mAs should be used with a larger patient whose abdomen measures 32 cm?

Question

Quizplus · Accepted Answer

The mAs should be adjusted according to the thickness of the body part being imaged. For every 4-5 cm increase in thickness, the mAs should be doubled. Since the larger patient's abdomen is 8 cm thicker (32 cm - 24 cm), the mAs should be doubled twice: 20 mAs to 40 mAs, and then 40 mAs to 80 mAs.

If a Small Adult's 24-Cm Thick Abdomen Requires 20 MAs