Exam 13: Screen-Film Radiographic Technique

Patient thickness should be measured with the _____.

What are the four primary exposure factors?

Which medical condition may require a lower technique?

A radiograph is taken using 75 kVp @ 20 mAs. Which change in technique would increase contrast but maintain the same density?

At least a _____% change in mAs is necessary to produce a visible change in optical density.

Which technique would give the highest patient dose?

There is a direct relationship between the quantity of x-rays and the _____.

The small focal spot will provide a _____. I. higher quality x-rays beam II. greater quantity of x-rays III. finer detail of image

List the following tissues in order from the most radiolucent to the most radiopaque. I. muscle II. fat III. lung IV. bone

A radiograph taken using 65 kVp @ 10 mAs is too light. Which technique would double the optical density while producing a wider scale of contrast?

A variable mAs technique chart has a set kVp and specific mAs settings for _____.

Beam quality is improved when the _____ is increased,but _____ has no effect on beam quality.

A _____% increase in kVp has the same effect on optical density as doubling the mAs.

Beam penetrability is increased if _____ is/are increased.

Changes in kVp affect _____.

When only the optical density needs to be changed,only the _____ should be adjusted.

A radiograph with a long scale of contrast will have _____ latitude and _____ contrast.

With automatic exposure control the exposure is terminated when the optimum _____ is reached.

In a variable kVp technique chart,the optimal mAs is set for each body part and there is a _____ kVp increase for each cm of thickness.

Both beam quality and beam quality are increased by _____.