A radiograph of the shoulder is obtained in the college lab using 75 kVp, 24 mAs and results in a 440 Exposure Index (EI). What mAs should be used to produce a 220 EI?

High kVp produces which of the following:

As a general rule, changing the SID from 40″ to 72″ requires which of the following to maintain radiographic density using conventional imaging with all other factorsremaining constant?

Start with 200 mA and 80 ms, change to 400 mA and 40 ms 

What image was produced using the higher kVp setting? Q1-2.png 

What image demonstrates the lowest contrast? Q36-37.PNG

The contrast improvement rating of a grid increases as the .

The number of grid lines per inch is defined as the grid .

A fluoroscopic x-ray unit is routinely used during which of the following procedures?

The air-gap technique is an effective method and may be used when a grid is not available because