RAD 214 Exam 2 Review

mAs controls both quantity and quality of the primary beam.

• True

• False

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-4

As mA increases

• the filament gets hotter.

• the time the electrons are boiled off increases.

• less electrons are boiled off at the filament.

• the patient dose decreases.

Tags

NGSS.HS-PS3-4

A DI of -4.5 means

• the image is underexposed and needs repeated.

• the image is overexposed and needs to be repeated.

• the IR received an appropriate exposure.

If mAs remains constant, the EI/DI & exposure to the IR remain constant is a statement of the ______.

• the 15% rule

• the half-value layer

• reciprocity law

• the inverse square law

If mAs is too low, how will it affect your image?

• No effect

• Too much noise/quantum mottle

• No noise/quantum mottle

• It will make the image too dark.

kVp controls which image quality?

• Spatial resolution

• Density

• Contrast

• Size distortion

As kVp increases, the contrast on the image

• is lower.

• is higher.

• stays the same.

• kVp does not control contrast.

Subject contrast is the difference in intensity between portions of the beam due to absorption characteristics.

• True

• False

Tags

NGSS.HS-PS4-4

This image can be described as

• being slightly underexposed.

• being overexposed.

• having a good exposure.

• having quantum noise.

As kVp increases, (select all that apply)

• the wavelengths become shorter.

• the wavelengths become longer.

• the energy in the beam decreases.

• the energy in the beam increases.

Tags

NGSS.HS-PS4-1