Dose Limits

Question 1

T/F: Effective dose limits can be either whole body or individual organ doses

Answer 1

True

Question 2

Responsible for workplace monitoring

Answer 2

OSHA

Question 3

Controls possession, use, and production of atomic energy; oversees nuclear energy industry

Answer 3

National Regulatory Commission (NRC)

Question 4

Responsible for design and manufacturing of x-ray equipment

Answer 4

FDA

Question 5

Responsible for environmental monitoring

Answer 5

Environmental Protection Agency (EPA)

Question 6

States that have agreement with NRC to assume responsibility for enforcing radiation protection regulations through their health department

Answer 6

Agreement States

Question 7

Cumulative Effective Dose

Answer 7

10 mSv x age (years)

Question 8

Annual occupational effective dose limit

Answer 8

50 mSv (5000 mrem) / year

Question 9

Pregnant radiation workers exposure limit

Answer 9

0.5 mSv (50 mrem) / month; 5.0 mSv (500 mrem) for entire pregnancy

Question 10

Working in conjunction with their partners in other agencies, the FDA intends to take action to
1. promote safe use of medical imaging devices.
2. support informed clinical decision.
3. increase patient awareness.

Answer 10

1, 2 and 3

Question 11

T/F: Medical imaging personnel absolutely never receive equivalent doses that are close to the annual occupational effective dose limit.

Answer 11

False

Question 12

A radiation safety officer in a health care facility must have sufficient authority, organizational freedom, and management prerogative to
1. identify radiation safety problems.
2. initiate, recommend, or provide corrective action.
3. stop unsafe operations involving by-product material.
4. verify implementation of corrective actions.

Answer 12

All of the above

Question 13

Determine the cumulative effective dose (CumEfD) limit to the whole body of an occupationally exposed person who is 46 years old

Answer 13

460 mSv

Question 14

Effective dose (EfD) limits may be specified for:
a. whole-body exposure.
b. partial-body exposure.
c. exposure of individual organs.

Answer 14

A, B, and C

Question 15

The primary function of the Nuclear Regulatory Commission (NRC) is to

Answer 15

oversee the nuclear energy industry

Question 16

Upper boundary safe radiation exposure limits for occupationally exposed persons are associated with risks that are similar to those encountered by employees in other industries that are generally considered to be reasonably safe. These industries include
1. manufacturing.
2. trade.
3. government.

Answer 16

All of the above

Question 17

the current method for controlling the risk of biologic damage to radiation workers and the general public from radiation exposure

Answer 17

The effective dose limiting system

Question 18

The ALARA concept adopts an extremely conservative model concerning the relationship between:

Answer 18

ionizing radiation and potential risk

Question 19

Which of the following are functions and/or responsibilities of the United States Occupational Safety and Health Administration (OSHA)?
1. Functions as a monitoring agency in places of employment, predominantly in industry
2. Regulates occupational exposure to radiation through Part 1910 of Title 29 of the U.S. Code of Federal Regulations (29 CFR 1910)
3. Responsible for regulations concerning an employee’s “right to know” with regard to hazards in the workplace

Answer 19

All of the above