Exam 4: Exposure Technique Factors

If a person stands 12 feet from the source of exposure, receives an exposure of 60 mR, and then moves to 3 feet from the source of exposure, what would be the new exposure according to the inverse square law?

(Multiple Choice)

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Question 21

If the image size measures 4.6 inches, and the magnification factor is 1.42, what is the size of the object?

(Multiple Choice)

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Question 22

Generally speaking, what is the kVp value for a pediatric (less than 6 years old)skull compared with the adult skull?

(Multiple Choice)

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Question 23

What effect will increasing SID have on recorded detail?

(Multiple Choice)

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Question 24

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

(True/False)

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Question 25

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.

(Multiple Choice)

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Question 26

During selection of the focal spot size, the radiographer is really determining the:

(Multiple Choice)

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Question 27

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

(Multiple Choice)

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Question 28

Which of the following is not affected by a change in SID?

(Multiple Choice)

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Question 29

With digital imaging, if lower than needed kVp is set, the image will have _ brightness and ___ quantum mottle.

(Multiple Choice)

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Question 30

Shape distortion can be created by:

(Multiple Choice)

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Question 31

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

(Multiple Choice)

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Question 32

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

(Multiple Choice)

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Question 33

Magnification is affected by:

(Multiple Choice)

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Question 34

If 20 mAs was used for all exposures, which kVp would produce the film-screen image with the greatest density?

(Multiple Choice)

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Question 35

As compared to a patient with a 24 cm thick abdomen, imaging a patient with a 20 cm thick abdomen will result in _ scatter being produced and __ image contrast.

(Multiple Choice)

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Question 36

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

(True/False)

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Question 37

The amount of mAs used has a direct effect on the density of a film-screen image.

(True/False)

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Question 38

A quality radiograph is done using 10 mAs, 70 kVp, and a 12:1 ratio grid.How much mAs is needed to produce an image with the same exposure to the IR when the grid is removed?

(Multiple Choice)

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Question 39

With film-screen imaging, if the kVp were decreased by 15% and no changes were made to the mAs:

(Multiple Choice)

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Question 40

Showing 21 - 40 of 60

If a person stands 12 feet from the source of exposure, receives an exposure of 60 mR, and then moves to 3 feet from the source of exposure, what would be the new exposure according to the inverse square law?

If the image size measures 4.6 inches, and the magnification factor is 1.42, what is the size of the object?

Generally speaking, what is the kVp value for a pediatric (less than 6 years old)skull compared with the adult skull?

What effect will increasing SID have on recorded detail?

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

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.

During selection of the focal spot size, the radiographer is really determining the:

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

Which of the following is not affected by a change in SID?

With digital imaging, if lower than needed kVp is set, the image will have _ brightness and ___ quantum mottle.

Shape distortion can be created by:

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

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

Magnification is affected by:

If 20 mAs was used for all exposures, which kVp would produce the film-screen image with the greatest density?

As compared to a patient with a 24 cm thick abdomen, imaging a patient with a 20 cm thick abdomen will result in _ scatter being produced and __ image contrast.

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

The amount of mAs used has a direct effect on the density of a film-screen image.

A quality radiograph is done using 10 mAs, 70 kVp, and a 12:1 ratio grid.How much mAs is needed to produce an image with the same exposure to the IR when the grid is removed?

With film-screen imaging, if the kVp were decreased by 15% and no changes were made to the mAs:

Radiation and Its Discover

The X-Ray Beam

Image Formation and Radiographic Quality

Scatter Control

Image Receptors and Image Acquisition

Image Processing and Display

Exposure Technique Selection

Image Evaluation

Dynamic Imaging: Fluoroscopy

Filters

Exam 4: Exposure Technique Factors

If a person stands 12 feet from the source of exposure, receives an exposure of 60 mR, and then moves to 3 feet from the source of exposure, what would be the new exposure according to the inverse square law?

If the image size measures 4.6 inches, and the magnification factor is 1.42, what is the size of the object?

Generally speaking, what is the kVp value for a pediatric (less than 6 years old)skull compared with the adult skull?

What effect will increasing SID have on recorded detail?

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

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.

During selection of the focal spot size, the radiographer is really determining the:

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

Which of the following is not affected by a change in SID?

With digital imaging, if lower than needed kVp is set, the image will have _______________ brightness and _________________ quantum mottle.

Shape distortion can be created by:

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

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

Magnification is affected by:

If 20 mAs was used for all exposures, which kVp would produce the film-screen image with the greatest density?

As compared to a patient with a 24 cm thick abdomen, imaging a patient with a 20 cm thick abdomen will result in _____________ scatter being produced and ______________ image contrast.

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

The amount of mAs used has a direct effect on the density of a film-screen image.

A quality radiograph is done using 10 mAs, 70 kVp, and a 12:1 ratio grid.How much mAs is needed to produce an image with the same exposure to the IR when the grid is removed?

With film-screen imaging, if the kVp were decreased by 15% and no changes were made to the mAs:

Radiation and Its Discover

The X-Ray Beam

Image Formation and Radiographic Quality

Scatter Control

Image Receptors and Image Acquisition

Image Processing and Display

Exposure Technique Selection

Image Evaluation

Dynamic Imaging: Fluoroscopy

Filters

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

With digital imaging, if lower than needed kVp is set, the image will have _ brightness and ___ quantum mottle.

As compared to a patient with a 24 cm thick abdomen, imaging a patient with a 20 cm thick abdomen will result in _ scatter being produced and __ image contrast.