Protection Of Imaging Personnel

Question 1

Proper techniques used to avoid dangerous exposure levels

Answer 1

Time
Distance
Shielding

Question 2

Protection techniques are even more important for

Answer 2

A pregnant RT

Question 3

Some factors affecting the exposure risks of radiologic technologists and Radiologist assistants

Answer 3

How they use an x-ray system
Whether they use protective measures
Whether they optimize patient doses
Number of procedures they perform
Height

Question 4

Factors influencing exposure time includes

Answer 4

How long the procedure takes
Whether a technologists move efficiently
Whether he or she is still learning the procedure

Question 5

Main source of occupational radiation exposure

Answer 5

Scatter or secondary radiation

Question 6

Helps protect radiologic technologists from exposure to scatter radiation

Answer 6

Distance

Shielding techniques

Question 7

Maximum radiation effective dose of medical workers

Answer 7

20 mSv per year

Question 8

Annual equivalent dose radiation limit to skin, hands, and feet

Answer 8

500 mSv

Question 9

Initial equivalent dose limit for the lens of the eye

Answer 9

150 mSv

Question 10

For the lens of the eye, the equivalent dose limit

Answer 10

20 mSv per year

Question 11

Techniques to decrease the amount of radiation they recieve

Answer 11

POMS

Pulsed fluoroscopy
Optimal dose rates for an acceptable image quality
Minimal number of required images per series
Short fluoroscopy

Question 12

These are worn by RT or radiologists assistants that absorbs radiation before it reaches the user’s body

Answer 12

Leaded protection garments

Question 13

Used to reduce risk of vision damage

Answer 13

Eye protection

Question 14

Different eye protections

Answer 14

Regular leaded glasses
Leaded clip-on shield
Full face lead shield

Question 15

Used to protect the entire face

Answer 15

Face protection

Question 16

Face masks are made up of

Answer 16

Acrylic that is impregnated with lead

Question 17

Susceptible to radiation damage that can trigger negative effects throughout the body

Answer 17

Thyroid gland

Question 18

Used to protect thyroid gland

Answer 18

Thyroid collar

Lead apron

Question 19

Hands and wrists are frequently exposed to

Answer 19

Direct beam radiation

Scatter radiation

Question 20

Radioprotective gloves should block

Answer 20

15%-30% of scatter radiation

Question 21

Thick gloves are

Answer 21

Less accomodating

Question 22

Best options personnel had to protect their hands

Answer 22

Time

Diatance

Question 23

A popular garment technologists use for protection

Answer 23

Lead apron

Question 24

Degree of protection depends on the

Answer 24

Lead’s thickness

Beam’s intensity

Question 25

Mean radiation dose to operators’ legs

Answer 25

0.19 and 2.16 mSv per interventional procedure

Question 26

Hands receive a radiation dose of

Answer 26

0.04 mSv and 1.25 mSv

Question 27

When protection was used, the leg exposure dropped to

Answer 27

0.02 mSv

Question 28

Radiation dissipates inversely as the distance from the source is squared-tissue twice as far away from the radioactive seed receives 1/4 the dose

Answer 28

Inverse Square Law

Question 29

First step in protecting pregnant RT and her fetus

Answer 29

Declare her pregnancy to her employer

Question 30

NCRP recommends an occupational radiation feral dose limit during the entire pregnancy

Answer 30

5.0 mSv and

Question 31

ICRP recommends total fetal exposure during the entire pregnancy of

Answer 31

1.0 mSv

Question 32

Radiation has the power to both

Answer 32

Save and harm lives