Multiple Choice
If the first radiograph of a chest is done using 72 inches and 12 mAs, and a second radiograph is done using 40 inches, how much mAs should be used to maintain exposure to the IR?
A) 2 mAs
B) 4 mAs
C) 7 mAs
D) 9 mAs
Correct Answer:
Verified
Correct Answer:
Verified
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