Rad Sci II Unit 1

As kVp increases from 70 to 90 and all other factors remain constant:

What is the minimum reaction time in AEC?

If I change my density setting in AEC to +1, my exposure will be ___ % longer.

Remnant x-rays are those that:

When kVp increases without compensating reduction in mAs, what is reduced?

Too short a backup time results in what?

What pathology will increase radiographic attenuation?

X-rays the technologist would like to have interact with the detector are:

Of the following which is most important when using a technique chart?

Which technique chart requires accurate measurement?

Accuracy in positioning the patient is most important with:

What is the primary goal of technique charts?

What is the approximate percentage of x-rays that actually form the image?

Barium is an example of ____ contrast that _____ attenuation.

Increased patient thickness while using AEC would result in:

Which of the following exams would utilize only positive contrast media?

An AEC device may use:

What type of technique system uses a fixed mAs regardless of patient thickness?

What technique chart requires higher patient dose?

Which pathologic condition would require an increase in exposure factors?

What detector combination is best for a lateral chest?

Using fixed mAs, variable kvp technique charts, each 1 cm increase in patient thickness requires?

Which of the following factors affecting scatter can be controlled by the technologist?

Fiberglass casts require what increase in technique?

As field size increases, scatter radiation

What is the maximum mAs allowed by the government?

With AEC devices:

Use of optimum kvp for small, medium, large body parts describes _____ technique chart.

Which AEC system works converting ionized air to electric charge?

As kvp increases, scatter radiation will:

In AEC, decreasing SID will _____ exposure time.

AEC work by measuring what? Choose the best answer.

Backup time in AEC is set at what percentage of expected exposure?

In AEC, decreasing mA station used will ___ exposure time.

When using AEC the only way to get a bigger exposure is to...

Which of the following technique charts requires most accurate measurement?

Scatter reduces radiographic quality by reducing???

Penetration of the anatomic part by the x-ray beam can be controlled by what?

In AEC, decreasing kvp will ___ exposure time.

What factors are important to AEC use?

Increasing kVp from 70-80 will:

Decreasing OID will ______ exposure time in AEC.

Advantage of variable kvp chart is it: