Deck 38: Occupational Radiation Dose Management

Question 1

Personnel working in interventional radiography should be provided with _____.

A) collar monitoring only
B) waist monitoring under the apron
C) extremity monitoring
D) gonadal monitoring

Answer 1

extremity monitoring

Question 2

For diagnostic x-ray personnel,the highest occupational exposure occurs during _____ exams.
I. fluoroscopy
II. mobile radiography
III. spinal
IV. dental

A) I & II
B) I & III
C) I & IV
D) III & IV

Answer 2

I & II

Question 3

Occupational dose is described as _____.

A) exposure dose
B) threshold dose
C) effective dose
D) dose equivalent

Answer 3

dose equivalent

Question 4

The dose limit to the extremities is _____.

A) 5000 mSv/yr (500 rem/yr)
B) 500 mSv/yr (50 rem/yr)
C) 50 mSv/yr (5 rem/yr)
D) 5 mSv/yr (50 rem/yr)

Question 5

The dose limit for a technologist during pregnancy is _____.

A) 0.05 mSv/mo (5 mrem/mo).
B) 0.5 mSv/mo (50 mrem/mo).
C) 5 mSv/mo (500 mrem/mo).
D) 50 mSv/mo (5000 mrem/mo).

Question 6

A protective apron with a thickness of 0.25 mm lead equivalent is the minimum required.

Question 7

During fluoroscopy the exposure to the collar is _____ times greater than exposure to the trunk of the body under a protective apron.

A) 50
B) 20
C) 10
D) 2

Question 8

The lowest occupational exposure of diagnostic x-ray personnel occurs during _____.

A) CT
B) mammography
C) fluoroscopy
D) both A and B

Question 9

Occupational radiation monitoring is required if the individual may get _____ of the recommended dose limit.

A) 100%
B) 50%
C) 25%
D) 10%

Question 10

Optically stimulated luminescent (OSL)monitors are superior to the thermoluminescent dosimeters in that they are _____.

A) lighter weight
B) less sensitive to moisture
C) more sensitive to low exposure
D) both A and B

Question 11

The lens of the eye should never receive more than _____ per year.

A) 10 mSv (1 rem)
B) 150 mSv (15 rem)
C) 50 mSv (5 rem)
D) 500 mSv (50 rem)

Question 12

The preferred way to hold patients who are unable to support themselves is to use a _____.

A) restraining device
B) family member
C) nurse
D) technologist

Question 13

The dose limit to the general public is _____.

A) 1 mSv/yr (100 mrem/yr)
B) 10 mSv/yr (1000 mrem/yr)
C) 100 mSv/yr (10 rem/yr)
D) 1 Sv/yr (100 rem/yr)

Question 14

The best way for technologists to reduce occupational exposure is to follow the principals of _____.
I. ALARA
II. time and distance
III. shielding

A) I only
B) II & III
C) III only
D) I, II, & III

Question 15

Dose limits are described as _____.

A) exposure dose
B) threshold dose
C) effective dose
D) dose equivalent

Question 16

There are no circumstances under which a technologist should be given an involuntary leave of absence due to pregnancy.

Question 17

For nursing personnel present during mobile x-ray imaging,a personnel monitoring device is required _____.

A) at all times
B) not at all
C) during exposures
D) only for C-arms

Question 18

Technologists working fluoroscopy should use the radiologist as shielding whenever possible in addition to the apron and curtain.

Question 19

Every radiology department should provide a radiation safety program that includes _____.

A) training new employees
B) periodic in-services for all employees
C) counseling during pregnancy
D) all of the above

Question 20

The tissue weighting factor has a higher value for tissues with more _____.

A) density
B) thickness
C) radiosensitivity
D) radioresistance