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Dose Limits
Dose Limits
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1
Which act allowed for establishment of center for devices and radiologic health (CDR)?
No act was necessary to start center
Radiation Control for health & safety act 1968
Radiation Control for health & safety act 1946
Foods and Drug Administration White Paper act
2
Annual dose limit for education and persons under 18 is:
150 mSv (15 REM)
0.5 mSv per month
2 mSv (0.2 REM)
1 mSv (0.1 REM)
3
Which organization reviews studies of biological effects and risk assessment of ionizing radiation?
NAS/NRC-BEIR
NCRP
ICRP
UNSCEAR
4
Annual dose limit to skin, hands and feet is:
50 mSv (5 REM)
500 mSv (50 REM)
5 mSv (0.5 REM)
150 mSv (15 REM)
5
In action limit facilities commonly set this limit at _ 1/10th of max EfD Limit.
1/10
2/3
3/4
2/10
6
“Optimize pt exposure to radiation from certain types of exams, thereby reduce risk & maximizing benefits of studies”
FDA concept
Standard x-ray equipment
FDA goal
RSO
7
What organization uses data to find conclusions on radiation risk assessment for cancer and genetic effects?
NAS/NRC-BEIR
NCRP
ICRP
UNSCEAR
8
RSO is usually a:
Medical or Health physicist
Medical or Health physicist, radiologist or qualified individual
Radiologist
None
9
Annual dose limit for general population is:
150 mSv (15 REM)
50 mSv (5 REM)
500 mSv (50 REM)
5 mSv (0.5 REM)
10
Texas is NOT an agreement state
False
True
11
The Nuclear Regulatory Commission (NRC) goes into contracts with:
State Govt
International Govt
Federal Govt
National Govt
12
This agency enforce radiation protection regulations through respective health departments:
EPA
OSHA
Agreement States
NRC
13
Annual dose limit for embryo fetus is:
2 mSv annually
0.1 mSv per month
0.5 mSv per month
0.5 mSv annually
14
Radiographers are considered:
Reasonably Safe
Not Safe
15
This organization(s) provides information to organizations such as ICRP for evaluation:
NAS/NRC-BEIR
UNSCEAR
UNSCEAR & NAS/NRC-BEIR
NCRP
16
What is the cumulative effective dose limit in workers lifetime?
Weight x 10 mSV
Weight x 20 mSV
Age X 20 mSv
Age x 10 mSv
17
The RSO can utilize corrective actions through action limit.
True
False
18
The cumulative effective dose does NOT include radiation from natural background and medical procedures outside of work
False
True
19
The annual dose for general population includes: occupational, spouse, parent or guardian.
False
True
20
This agency main function is to oversee nuclear energy industries:
FDA
EPA
NRC
OSHA
21
Determine CumEfD limit to the whole body of an occupation exposed person who is 37 yrs old.
10 mSv x 37 = 370 mSv
20 mSv x 37 = 740 mSv
22
Which agency ensures protection of individuals from faulty manufacturing?
FDA
EPA
OSHA
NRC
23
What organization evaluates radiation exposure from sources: radioactive material, accidents and machines?
NCRP
NAS/NRC-BEIR
ICRP
UNSCEAR
24
This organization reviews regulations formulated by the ICRP?
UNSCEAR
ICRP
NCRP
NAS/NRC-BEIR
25
This agency regulates the design and manufacturing of radiation products:
NRC
FDA
OSHA
EPA
26
Which of these are not a responsibility of RSO?
Go into contracts with state government about radiation protection
Provide counseling to individuals who receive high readings
Implement and enforce policies on radiation protection
Ensuring all are protected from excessive exposure
27
In non-agreement states both State and NRC jointly enforce radiation protective regulations.
True
False
28
This agency was established by president Nixon:
EPA
FDA
OSHA
NRC
29
Current radiation protection philosophy is based on what dose relationship?
Linear Threshold
Non-Linear Non-threshold
Non-Linear Threshold
Linear non-threshold
30
The negligible individual dose is:
0.01 mSv annually
0.5 mSv annually
0.5 mSv monthly
0.01 mSv monthly
31
Which agency facilitates development and enforcement of regulations pertaining to control of radiation in environment?
EPA
FDA
OSHA
NRC
32
This is needed to provide low exposure cut off level for regulatory agencies:
Negligible Individual
Action Limit
Cumulative Effective Limit
Measurement Reports
33
What is the limit for then entire pregnancy?
6.0 mSv
No limit
5.0 mSv
4.0 mSv
34
This agency was formally known as the Atomic Energy Committee:
Occupation Safety and Health administration (OSHA)
Environmental Protection Agency (EPA)
Agreement States
Nuclear Regulatory Commission (NRC)
35
Radiation Hormesis suggests:
High levels of radiation show benefits
High levels of radiation have no benefit
Low levels of radiation exposure have no benefit
Low levels of radiation show benefits
36
This agency regulates occupational exposure:
FDA
OSHA
EPA
NRC
37
Radiation Control for Health and Safety Act of 1968 states:
Created the code of standards for diagnostic x-ray equipment
Several studies show low levels of radiation exposure have benefits
X-ray beam must always be filtered
x-ray beam most the time should be filtered
38
Term used by hospitals to indicate limit that triggers an investigation:
Measurement Reports
Negligible Individual
Cumulative Effective Limit
Action Limit
39
Annual dose limit for occupational is:
500 mSv (50 REM)
5 mSv (0.5 REM)
50 mSv (.5 REM)
50 mSv (5 REM)
40
The US Food and Drug Administration (FDA):
Enforces regulations concerning radiation in the environment
None of these
Ensures protection of individuals from faulty manufacturing
Oversee nuclear energy industries
41
Which radiation safety program oversee daily operations and provides formal review each year?
Supervisor of Radiology
Radiation Safety Officer (RSO)
Lead Tech
Radiation Safety Committee
42
Standard Diagnostic x-ray equipment code includes:
Automatic limitation of radiographic beam (PBL)
Appropriate permanent filtration of x-ray beam
All choices are correct
Presence when beam is on and terminated
43
What organization ins the international authority on safe use of ionizing radiation?
UNSCEAR
NAS/NRC-BEIR
NCRP
ICRP
44
Which agency publishes its rules and regulations in Title 10 of US Code of Federal Regulations?
EPA
OSHA
FDA
NRC
45
Annual dose limit to lens of eye is:
500 mSv (50 REM)
150 mSv (15 REM)
5 mSv (0.5 REM)
50 mSv (5 REM)
46
Which of these is not a US regulatory agency?
NRC
EPA
ICRP
FDA
47
How many report numbers does the NCRP have?
116
112
Established none
119
48
“Each patient should get the right imagining examination, at the right time, with the right radiation dose”
Standard x-ray equipment
RSO
FDA goal
FDA concept
49
Which Organization provides clear and consistent protection recommendation for occupation and public dose limits?
ICRP
NAS/NRC-BEIR
UNSCEAR
NCRP
50
Which organization formulas general recommendations, publishes reports and incorporates into US radiation protection?
NAS/NRC-BEIR
ICRP
NCRP
UNSCEAR
51
A dose that an individual obtains due to unnecessary exposure:
Action Limit
Negligible Individual
