Image quality

A radiograph is taken using 300 mA, 20ms at 90 kVp at a 200cm SID. What new time setting can be used to maintain the same radiographic exposure at a 100cm SID, assuming all other factors remain unchanged?

0.005 s

Which of the following may be used by the radiographer to help compensate for the varying densities of anatomic structures on a routine PA projection of the chest?

Trough filter

A chest radiograph is taken w/ the PT erect against chest bucky w/ a 12:1 grid using technical factors of 110 kVp and 5 mAs. What new technical factors should be used on a dedicated chest unit that has an 8:1 grid

110 kVp & 4 mAs

Which of the following procedures typically requires an image demonstrating a long scale of contrast

Chest

All other factors remaining same, what effect does excessive filtration have on a radiographic image?

Reduce contrast???

Which of the following sets of technical factors will result in the image w/ the shortest scale of contrast?

200 mAs, 70 kVp, 16;1 grid, 200cm SID, 20cm OID, 2mm FSS

If a radiograph demonstrates excessive distortion, which of the following corrections should be made before repeating the radiograph?

Increase SID

All factors being equal, which of the following body types will produce the greatest subject contrast?

Asthenic

The use of a beam limiting device(collimator) reduces PT exposure but to maintain proper radiographic exposure:

mAs should be increased

Which of the following advanced pathological conditions would require an increase in the technical factors normally used?

Ascites