Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Capstone > Rad Protection > Flashcards

Rad Protection Flashcards

1
Q

The source to skin distance in mobile Fluoro must not be less than how many inches

A

12 (30cm)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Which o the following describes an atom that has lost one or more of its electrons

A

Ion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Which of the following signals is needed to indicate that a radiation exposure has been made

A

Audible sound and visible light

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

The source to skin distance in stationary fluoro must not be less than how many inches

A

15 (38 cm)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Which of the following is the unit of absorbed dose

A

Rad

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Which of the following is the unit of exposure dose of gamma or X-rays

A

Roentgen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

The fact that some materials can store energy then emit light when heated is the principle that is used for

A

Thermoluminescent dosimeter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

The roentgen unit only applies to which of the following types of radiation

A

X and gamma

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the cumulative effective dose limit for a 25 yr old radiation worker

A

250 mSv

25 rem

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

The optically stimulated luminescence dosimeter uses which of the following o detect radiation

A

Aluminum oxide

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

The equivalent dose limit for radiation workers is based on the radiation received from what sources

A

Occupational exposure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

The rad, rem, an roentgen wil all be equal when measuring which type of radiation

A

Xray

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

The reduction o the intensity of radiation as it passes through material is known as

A

Attenuation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

The allowable occupational radiation dosage that is assumed to result in an average nominal lifetime risk is known as

A

Effective dose limit

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Which of the following would be considered natural background radiation
Xray
Cosmic rays
Alpha particles

A

Cosmic and alpha

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Which o the following is a radiation survey instrument

A

Cutie pie

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Which of the following is the least expensive type of radiation monortoing device

A

Film badge

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Which of the following timers is used to accurately and automatically reproduce radiographic exposures

A

Phototimers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

A piece of paper will provide adequate protection from which type of radiation

A

Alpha

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Which o the following interactions will occur in the diagnostic xray range
Coherent (classical) scatter
Compton effect
Photoelectric absorption

A

Compton and photoelectric

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Which of the following refers to measuring the quantity of an xray beam

A

Dosimery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

The becquerel is a measurement of

A

Number of disintegrations per second

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Radiation that leaves the tube housing by any means other than through the window is called

A

Leakage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Which type of radiation is most penetrating

A

Gamma

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

What is a major disadvantage of film badges as a radiation monitoring device

A

Immediate readings are not available

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

What is the primary beam after it has passed through the beam restricting device called

A

Useful beam

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

According to NCRP report #160 what was the average radiation dose per person in the US from all sources of radiation in 2006

A

6.2 mSv

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q 
Which of the following refers to biological dose
Rad
Rem
RBE
roentgen
A

RBE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

What are the two general types of radiation detection devices

A

Field survey and personal monitoring

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

What effects the rate of decay of a radioactive material

A

Nothing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

What describes a beta particle

A

High speed electron

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

Which interaction will not result in a scatter photon

A

Photoelectric absorption

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

How I the roentgen unit determined

A

Ionization in the air

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

During fluoro which of the following will produce the greatest amount of scatter

A

The Patient

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

The density of a film badge is compared to what to determine the exposure to the the worker

A

Density standard

36
Q

What I the quantity of radiation received by a radiation worker referred to

A

Rem

37
Q

What measurement is equal to 1 joule per kilogram

A

Gray

38
Q 
Which of the following exposure indicator numbers indicates that the image ️receptor and patient were overexposed
2.5
200
400
2000
A

2.5

39
Q 
Which of the following will not have an effect on pt dose
Filtration
SID
focal spot ️size
Kvp
A

Focal spot ️size

40
Q

What is the best method for determining if a female pt is pregnant

A

Blood preg test

41
Q

Which of the following is not an important factor when attempting to reduce pt exposure

A

Use highest mA

42
Q

Which examination would not allow male gonadal shielding

A

Voiding cystourethrogram

43
Q

.5 mm lead gonadal shield will reduce female gonadal exposure by approx what percent

A

75%

44
Q

The dose rate at the table top during fluoro cannot exceed ____R per min

A

10

45
Q

How will beam filtration effect the primary beam

A

Make it more homogeneous

46
Q

To prevent radiation from exposing the pt an X-ray tube must have how much protective lead

A

1.5 mm

47
Q

What is the equivalent dose limit for an embryo-fetus

A

.5 mSv/month

48
Q

Which of the following is a means of expressing the dose a pt has received from a radiographic exam
Skin dose
Organ dose
Whole body dose

A

All of the above

49
Q

Which of the following will affect the quantity as well as the quality of the xray beam
Kvp
Hvl
SID

A

All of the above

50
Q

The quality of an xray beam can be measured by which of the following methods
Rate meter
Sensitometry
Hvl

A

Hvl

51
Q

What is the effective dose limit for the whole body of a radiation worker

A

50 mSv/ 5rem per year

52
Q

Personal monitoring is required when there is any likelihood that an individual will receive more than _____ the effective dose limit

A

1/10

53
Q

What is the equivalent dose limit to the fetus of a pregnant RT

A

.5msv / month

54
Q

What is the effective dose limit a radiation worker can receive in any on quarter (13 weeks ) of a yr

A

30 mSv/ 3rem

55
Q

What percentage of the primary exposure to the pt will reach a tech standing 1 meter away

A

.1%

56
Q

If an exposure of 16mR is recorded at 1 meter what would the exposure rate be at 4 meters

A

1 mR

57
Q

What phase of cell division is considered to be most radiosensitive

A

Metaphase

58
Q

The direct hit theory of cell irradiation can be described as

A

The DNa molecule is stuck

59
Q

Which mature cell is least radiosensitive

A

Nerve cells

60
Q

Which is not part of the genetic code that helps compose DNA

A

Urine

61
Q

Characteristics of X-rays

A

High energy
High frequency
Short wavelength

62
Q

Environmental sources of radiation

A

Cosmic
Terrestrial
Internal

63
Q

Artificial sources of radiation

A

Medical
Nuclear industry
Consumer products

64
Q

Inner she’ll electron interaction within the body

A

Photoelectric

65
Q

Outer shell interaction within the body

A

Compton

66
Q

Absorbed dose unit

A

Rad gray

67
Q

Equivalent dose unit

A

Rem

68
Q

Effective dose unit

A

Rem

69
Q

Effective dose limit or occupational worker per year

A

5 rem 50 mSv

70
Q

Effective dose for lens of eye

A

15 rem 150 mSv

71
Q

Skin organs effective dose limit

A

50 rem 500 mSv

72
Q

How much lead in a primary barrier

A

1/16”

73
Q

Amount of lean in a secondary barrier (console / control barrier)

A

1/32 “

74
Q

Lead equivalency for aprons and thyroid shield

A

.5

75
Q

Lead equivalency for gloves

A

.25

76
Q

Lead equivalency for glasses

A

.35

77
Q

Lead equivalency for fluoro drape

A

.25

78
Q

Lead equivalency for Bucky slot cover

A

.25

79
Q

Somatic effects

A

Effects the person them self

80
Q

Genetic effects

A

Effects occurring in unborn generations

81
Q

Are stochastic effects liner/nonlinear threshold/nonthreshold

A

Linear nonthreshold

Ex cancer

82
Q

Are deterministic responses linear/nonlinear threshold/ nonthreshold

A

Nonlinear threshold

83
Q

Fetal death may occur during what stage of development

A

Preimplantation

First 2 weeks

84
Q

Genetic mutation may occur during what stage of fetal development

A

Major organogenesis

85
Q

Large dose over short time

A

Acute dose

86
Q

Small dose over long time

A 
Chronic dose
(Leukemia and genetic effects are of concern)
87
Q

Diagnostic xray has what radiation dose response

A

Linear nonthreshold

Capstone (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions