A radiographer takes an initial radiograph using the technic…

A radiographer takes an initial radiograph using the technical factors of 50 mA at 0.46 seconds. There is involuntary motion on the radiograph, but the radiographer wants to maintain IR exposure. If the exposure time is reduced to 0.115 seconds, what is the new mA? Show your work and include the correct answer units.  

A cross lateral hip x-ray was taken using 78 kVp and 60 mAs….

A cross lateral hip x-ray was taken using 78 kVp and 60 mAs. The proximal hip was under penetrated which caused the resulting image to be underexposed. What new technique would demonstrate increased penetration on the radiograph and double the image receptor exposure? Round to the nearest whole number and include the correct answer units.