Radiology Module 9

Question 0

Radiopaque:
Image is — dense and allows — x-rays to pass through
Appear as — areas on film

Answer 0

More
Less
Light

Question 1

Radiolucent areas:
Object is —– and permits passage of —– x-rays
Appear as — areas on film

Answer 1

Less dense
More
Black

Question 2

What are the 2 primary visual characteristics that influence the diagnostic quality of radiographs

Answer 2

Density

Contrast

Question 3

Density is the?

Answer 3

Overall degree of darkness

Question 4

Increasing —, —-, or —-

Increases density or makes film appear?

Answer 4

Kvp
Ma
Exposure time
Appears darker

Question 5

If your pt is larger you need to —- exposure time

Answer 5

Increase

Question 6

Contrast is the?

Answer 6

Difference in degree of black/white between adjacent structures.

Question 7

High contrast films appear?

Answer 7

Black/white

Question 8

Low contrast films appear

Answer 8

As multiple shades of gray

Question 9

The best films have high or low contrast?

Answer 9

In between

Low if you had to choose one

Question 10

Contrast is influenced by the?

Answer 10

Kvp

Question 11

Kvp deals with — of x-rays

Answer 11

Quality

Question 12

Low kvp is <—? And results in — contrast

Answer 12

70

More

Question 13

High kvp is >—– and results in —- contrast

Answer 13

90

Low

Question 14

Short scale contrast goes with —-

Kvp and —-contrast

Answer 14

Low

High

Question 15

Long scale contrast deals with —-

Kvp and —– contrast

Answer 15

High

Low

Question 16

What are the 3 geometric characteristics of a radiograph

Answer 16

Sharpness
Magnification
Distortion

Question 17

Sharpness is influenced by what 3 factors

Answer 17

Focal spot
Film composition
Movement

Question 18

The fuzzy unclear areas surrounding a radiograph are termed?

Answer 18

Penumbra

Question 19

The focal spot is the — —-

Answer 19

Tungsten target

Question 20

The tungsten target or focal spot can be how big?

Answer 20

0.6-1.0mm

Question 21

A — tungsten target produces a sharper (more detailed) image?

Answer 21

Smaller

Question 22

Emulsion with —- crystals produces less sharpness!

Answer 22

Larger

faster films

Question 23

Movement in —, —, and — all result in blurred images

Answer 23

Pt

Film tube head

Question 24

Target (tooth) to film distance is determined by?

Answer 24

PID length

Question 25

Long PID offers more — rays and

— Magnification

Answer 25

Parallel

Less

Question 26

Short PID offers more — rays and

— magnification

Answer 26

Divergent

More

Question 27

Object (tooth) to film distance:

The closer they are the — magnification

Answer 27

Less

Question 28

Object (tooth) to film should be as —- as possible to each other

Answer 28

Parallel

Question 29

X-ray beam angulation is —- to the tooth and film

Answer 29

Perpendicular

Question 30

—- is the unequal magnification of a tooth/object

Answer 30

Distortion