Exam 6: Exposure Technique Factors

In order to reduce patient exposure,_____ kVp and _____ mAs should be used when possible.

The relationship between distance and x-ray beam intensity,specifically that the intensity of the x-ray beam is inversely proportional to the square of the distance from the source,is the:

In order to image a structure that is located anteriorly in the body,it is best radiographed to minimize magnification by doing a(n)_____ projection.

When a film image is too light,it has _________ density,and would require a(n)_______ in mAs by 2 on repeat to obtain a diagnostic image.

With film-screen imaging,which of the following technique factors directly controls the density produced on the image?

Film-screen images should be produced with very high kVp and very low mAs in order to reduce patient exposure.

Kilovoltage does not affect the quantity of exit radiation until adequate penetration is reached.

If the first radiograph of a foot is done using 4 mAs at 40 in,and a second radiograph is done using 50 in,how much mAs should be used to maintain exposure to the IR?

If a person stands 3 feet from the source of exposure,receives an exposure of 160 mR,and then moves to 6 feet from the source of exposure,what would be the new exposure according to the inverse square law?

With digital imaging,exposure factors do not need to be adjusted in order to visualize soft tissue.

The distance between the radiation source and the image receptor is the:

As compared to a three-phase x-ray unit,a single-phase unit requires higher exposure techniques to produce a comparable image.

If you were to select 250 mA and 0.5 s on the control panel,how much mAs would be created?

With film-screen imaging,increasing the kVp results in an image with ___________ density and ____________contrast.

Increasing tube filtration results in an x-ray beam with __________________ quantity and ___________ energy.

For every _____ of part thickness,the radiographer should adjust the mAs by a factor of two.

When the SID is divided by the SOD,what is the result called?

In film-screen imaging,reducing the area of exposure (increasing collimation)_____ image contrast.

Magnification is affected by:

The numerical value that is displayed on the processed image to indicate the level of x-ray exposure received on the digital image receptor is the_______________.