Which of the following is true regarding the 15% rule?
decreasing kVp by 15% would produce density equal to halving the mAs
kVp is increased by 15% and mAs is decreased by 15% to maintain density
kVp is maintained while mAs is increased by 15%
kVp is maintained while mAs in increased by 15%
decreasing kVp by 15% would produce density equal to halving the mAs
Rationale: kV and density are directly related, they are not directly proportional. If it is desired to double the density and mAs cannot be adjusted, kVp can be increased by 15%.
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