If the First Radiograph of a Chest Is Done Using

question 35

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 density?

• A) 2 mAs
• B) 4 mAs
• C) 7 mAs
• D) 9 mAs