Answer the following statement(s) true (T) or false (F)

1. Radiographic images obtained by CR and DR permit a greater latitude than conventional films.
2. According to the ALARA principle, the technologist should produce optimal image with the least amount of radiation.
3. The characteristic curve is best created by using a sensitometer by exposing film to various exposures.
4. Low-contrast images have significantly noticeable differences between adjacent densities.
5. A decrease in kVp results in an increase in contrast.


1. TRUE The ability of CR and DR to provide technologists with greater latitude in image acquisition should not replace setting appropriate exposure factors.
2. TRUE The radiologic technologist should always adhere to the principle of using as low as reasonably achievable (ALARA).
3. TRUE The characteristic curve is a graph depicting specific density readings obtained from the film of gradient densities.
4. FALSE Low-contrast images have little noticeable differences between adjacent densities.
5. FALSE A decrease in kVp results in an increase in contrast.

Health Professions

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