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RADT 151 Radiographic Exposure > Exam 2 > Flashcards

Exam 2 Flashcards

1
Q

attenuated

A

absorbed or scattered energy

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2
Q

photons

A

light particles

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3
Q

space charge

A

electron cloud at filament

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4
Q

remnant radiation

A

secondary radiation reaching image receptor

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5
Q

target material

A

tungsten rhenium alloy

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6
Q

focusing cup material

A

molybdenum

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7
Q

tube housing material

A

lead

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8
Q

filter material

A

aluminum

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9
Q

tube current controlled by

A

keV

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10
Q

filament current controlled by

A

mA

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11
Q

potential difference controlled by

A

Kv

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12
Q

ionizing radiation

A

charges atoms

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13
Q

photon

A

bundle of light energy

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14
Q

non-ionizing

A

not penetrating

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15
Q

light

A

non-ionizing radiation

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16
Q

The quantity of x-ray photons delivered to the patient is primarily controlled by

A

mA (milliamperage)

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17
Q

The ability to see the differences in tissue opacities

A

contrast resolution

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18
Q

The distance between the anatomical part and the x-ray source is commonly referred to as

A

Source Object Distance

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19
Q

The sharpness or definition of an image’s outline is primarily controlled by

A

filament size

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20
Q

The overall blackening of a radiographic image

A

density

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21
Q

The primary controlling factor for radiographic contrast

A

kV

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22
Q

Which factor is primarily responsible for true representation of an anatomical part

A

Source Image Distance

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23
Q

Possession of sufficient density, adequate penetration and appropriate contrast results in

A

resolution

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24
Q

Term used to describe the measurement of the difference in radiographic densities

A

contrast

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25
Q

Density can be described as

A

tones of blackness throughout an image

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26
Q

Criteria when evaluating sufficient density on a radiograph

A

image background is black, clear visualization of anatomy

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27
Q

Energy emitted from the x-ray tube is referred to as

A

intensity

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28
Q

The primary function of mAs during the creation of a radiographic image is to

A

regulate density

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29
Q

The darkening on a radiographic image as a result of radiation exposure is

A

density

30
Q

Osteoporosis is a common diagnostic finding in females over 50 years old. When radiographing a patient with osteoporosis, the R.T. should do which of the following?

A

decrease mAs by 30%

31
Q

osteoporosis

A

demineralization of bones

32
Q

acromegaly

A

enlargement of extremities

33
Q

cirrhosis

A

enlargement of liver

34
Q

osteomyelitis

A

infection in bone

35
Q

fluid accumulation within the peritoneal cavity causes an increase in tissue thickness. The free fluid, has a unique “ground glass” appearance

A

ascities

36
Q

a defect in bone mineralization
results in decreased composition of the affected bone

A

osteomalacia

37
Q

reduction in size

A

atrophy

38
Q

softening of the bone

A

osteomalacia

39
Q

inflammation of the joints results in a destruction of adjoining bone tissue, which decreases the composition of the part

A

arthritis

40
Q

benign tumor at end of bones

A

osteochondroma

41
Q

irreversible dilation of part of the bronchial tree caused by destruction of the muscle and elastic tissue

A

bronchiectasis

42
Q

balloon-like bulge (dilation) of a vessel

A

aneurysm

43
Q

additive pathologies is a result of exposure to asbestos or fertilizer dust

A

pneumoconiosis

44
Q

pathologies is characterized by fluid in the lung from an inflammatory condition usually caused by infection resulting from viruses or bacteria

A

pneumonia

45
Q

atelectasis

A

A collapsed lung

46
Q

An infection by a mycobacteria causes the inflammatory response resulting in fluid filling the lung is termed

A

tuberculosis

47
Q

an encapsulated infection increases tissue thickness and may alter composition, particularly in the lungs

A

Abscess

48
Q

swelling causes an increase in tissue thickness and may alter composition if it occurs in the lungs

A

Edema

49
Q

an abnormal new growth in tissue results in
an increase in tissue thickness

A

Tumors

50
Q

a wasting away of body tissue with diminished cell proliferation, resulting in reduced thickness

A

Atrophy

51
Q

a generalized wasting away of body tissue, resulting in reduced thickness of the body

A

Emaciation

52
Q

the chronic dilatation of the bronchi can result in peribronchial thickening

A

Bronchiectasis

53
Q

pus in the thoracic cavity causes an increase in tissue density

A

Empyema

54
Q

the removal of a lung will cause
the affected side to demonstrate an increase in IR exposure because normal air-filled lung tissue is removed

A

Pneumonectomy

55
Q

when fluid fills the interstitial
lung tissues and the alveoli, tissue density increases

A

Pulmonary Edema

56
Q

an infection by a mycobacteria causes the inflammatory response, which results in an increase in fluid in the lungs

A

Tuberculosis (advanced/
miliary)

57
Q

the overdistention of the lung tissues by air will result in a decrease in lung tissue density

A

Emphysema

58
Q

fluid accumulation within the peritoneal cavity causes an increase in tissue thickness. The free fluid has a unique “ground glass” appearance

A

Ascites

59
Q

an increase occurs in bone cell activity, which leads to new bone growth. The result is increased bone thickness, with the pelvis, spine, and skull most often affected

A

Paget’s Disease

60
Q

an increase in hardening as a result of a chronic inflammation in bone. This increases the density of the bone tissue

A

Sclerosis

61
Q

malignancies in bone can cause an osteolytic process, resulting in decreased thickness and composition of the part

A

Carcinoma

62
Q

death of bone tissue results in a
decrease in composition and thickness of the part

A

Aseptic Necrosis

63
Q

inflammation of the joints
results in a destruction of adjoining bone tissue, which decreases the composition of the part

A

Degenerative Arthritis

64
Q

this malignant tumor of the metaphysis of bone causes an osteolytic lesion with a “moth-eaten” appearance. The result is reduced bone composition

A

Fibrosarcoma

65
Q

during the chronic stages of this metabolic disease, areas of bone destruction result in punched-out lesions that reduce the bone composition

A

Gout

66
Q

oversecretion of the parathyroid hormone causes calcium to leave bone and enter the bloodstream. The bone becomes demineralized and composition is decreased

A

Hyperparathyroidism

67
Q

this malignant tumor arises from
plasma cells of bone marrow and causes punched-out osteolytic areas on the bone. Often many sites are affected and reduced bone tissue composition results

A

Multiple Myeloma

68
Q

when some malignancies spread to bone they produce destruction of the bone, resulting in reduced composition

A

Osteolytic Metastases

69
Q

a defect in bone mineralization
results in decreased composition of the affected bone

A

Osteomalacia

70
Q

a defect in bone production due to the failure of osteoblasts to lay down bone matrix results in decreased composition of the affected bone

A

Osteoporosis

71
Q

Contrast is best described as

A

the differences in image densities

72
Q

Density controlled by

A

mAs

RADT 151 Radiographic Exposure (2 decks)

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