Study Flash Cards

Question 1

The threat of bodily harm with the parent ability to do so is termed

Answer 1

Assault

Question 2

And acute reaction caused by ingestion or injection of a sensitizing agent describes

Answer 2

Anaphylaxis

Question 3

As the CR laser scanner recognizes the phosphostimulated luminescence released by the PSP storage plate it constructs a graphic representation of pixel value distribution called

Answer 3

Histogram

Question 4

And accurately position oblique position of the first through fourth lumbar vertebrae will demonstrate the classic Scottie dog. What bony structure does the Scottie dogs neck represent?

Answer 4

Pars interarticularis

Question 5

In the oblique vertebrae of the lumbar spine the Scottie dogs nose represents

Answer 5

Transverse process

Question 6

In the oblique vertebrate of the lumbar spine the Scottie dogs eye represents

Answer 6

Pedicle

Question 7

In the oblique vertebrae of the lumbar spine the Scottie dogs front leg represents

Answer 7

Inferior articular process

Question 8

In the oblique vertebrae of the lumbar spine the Scottie dogs ear represents

Answer 8

Superior articular process

Question 9

In the oblique vertebrae of the lumbar spine the Scottie dogs body represents

Answer 9

Lamina

Question 10

If the SID is increased what is the effect on exposure rate and receptor exposure?

Answer 10

Exposure rate decreases and receptor rate decreases as SID increases

Question 11

What information must be included on an x-ray image for it to be considered a legitimate legal evidence

Answer 11

name of the facility where examination was performed and examination date

Question 12

The principal late effects of ionizing radiation on humans include

Answer 12

Genetic effects and malignant disease

Question 13

What is the standard international unit of radiation exposure?

Answer 13

Gy(a)

Question 14

What technical factors are used to pose the lease hazard to the particular and allowed?

Answer 14

Large focal spot and high KV

Question 15

The CR should be directed to the center of the part of greatest interest in order to avoid

Answer 15

Rotation distortion

Question 16

Federal regulations regarding infection control in the workplace, as amended by the occupational safety and health administration, make which of the following requirements?

Answer 16

Puncture proof containers must be provided for all use needles and follow up care must be provided to any staff asked the only exposed to blood//needle stick

Question 17

Imperfect expansion of the lungs, often accompanied by dyspnea, is called

Answer 17

Atelectasis

Question 18

The exposure timer settings on the three-phase radiographic equipment must be tested annually and must be accurate to within

Answer 18

+/-5%

Question 19

What CR placement will best demonstrate the lumbosacral (L5-S1) articulation an AP position

Answer 19

30 to 35° cephalic CR angle

Question 20

What projection requires that the shoulder be placed in external rotation

Answer 20

AP humerus

Question 21

What is well demonstrated in the oblique position of the cervical vertebrae?

Answer 21

Pedicles

Question 22

What most likely produces a high-quality image?

Answer 22

Large matrix size, high signal to noise ratio, small pixel size, high resolution

Question 23

How will a decrease in KV affect wavelength, scale of grays, and optical density?

Answer 23

Wavelength will increase, scale of grays will decrease, and optical density will decrease

Question 24

What term refers to size distortion

Answer 24

Magnification

Question 25

Advantages of high frequency generators include

Answer 25

Small size, decreased patient dose, and nearly constant potential

Question 26

Biological material is most sensitive to radiation exposure under which conditions

Answer 26

Oxygenated

Question 27

The RAO position is used to project the sternum to the left of the thoracic vertebrae in order to take advantage of the

Answer 27

Heart shadow

Question 28

As window level decreases

Answer 28

Brightness decreases

Question 29

As window width decreases

Answer 29

Contrast decreases

Question 30

What does window level control

Answer 30

Brightness

Question 31

What does window width control

Answer 31

Contrast

Question 32

What is used to indicate the appropriateness of radiation intensity reaching the IR

Answer 32

Exposure index and sensitivity (S) number

Question 33

What projection is most useful for bone age evaluation

Answer 33

PA hand

Question 34

What lies immediately under the phosphor layer of the PSP storage plate

Answer 34

Reflective layer

Question 35

What is the grid conversion formula

Answer 35

mAs 1/mAs 2=grid factor 1/grid factor 2

Question 36

Know Grid factor by grid size

Answer 36

No grid= 1 x original mAs

5: 1 = 2 x original mAs
6: 1. = 3 x original mAs
8: 1. = 4 x original mAs
12: 1. = 5 x original mAs
16: 1. = 6 x original mAs

Question 37

What is the inverse square law formula

Answer 37

I 1/ I 2 = D 2 squared/ D 1 squared

Question 38

What is the positive end of the X-ray tube

Answer 38

Anode

Question 39

What is the negative end of the X-ray tube

Answer 39

Cathode

Question 40

Heat unit formula for single phase

Answer 40

mA x kVp x s

Question 41

Heat unit formula for three phase

Answer 41

mA x kVp x s x 1.41

Question 42

What position would best demonstrate the lumbar intervertebral joints and foramina?

Answer 42

Lateral

Question 43

What term is used to express resolution?

Answer 43

Modulation transfer function (MTF)

Question 44

A diuretic is used to

Answer 44

Increase urine output

Question 45

What type of error results in grid cutoff at the periphery of the radiographic image

Answer 45

Off focus

Question 46

What type of X-ray imaging uses an area bean and photostimulable phosphor as the IR

Answer 46

Computed radiography (CR)