Protection of Imaging Personnel

Question 1

Radiation has the power to both

Answer 1

save and harm lives

Question 2

use radiation to provide quality medical imaging, and must be aware of potential exposure to radiation’s detrimental effects

Answer 2

Radiologic Technologist

Question 3

When proper _____ techniques are used, dangerous exposure levels can be avoided

Answer 3

time, distance and shielding

Question 4

Protection techniques are even more important for a

Answer 4

pregnant radiologic technologist

Question 5

Factors affecting the exposure risks of radiologic technologist and radiologist assistants

Answer 5

how to use an xray system
whether they use protective measures
whether they optimize patient doses
the number of procedures they perform
their height,which could affect how much scatter radiation reaches their eyes

Question 6

factors influencing exposure time

Answer 6

how long a procedure takes
whether a technologist or operator moves efficiently through a procedure or adheres to a protocol
whether he or she is still learning the procedure

Question 7

Susceptible to scatter radiation that mainly emanates from a patient

Answer 7

Radiologic Technologist

Question 8

Main source of occupational radiation exposure

Answer 8

Scatter or secondary radiation

Question 9

Help protect radiologic technologists from exposure to scatter radiation

Answer 9

Distance and Shielding

Question 10

ICRP recommended that medical workers receive a

Answer 10

maximum radiation effective dose of 20mSv per year,

Average over 5 years, with no more than 50mSv in 1 year

Question 11

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

Answer 11

500mSv each

Question 12

Lens of the eye initial equivalent dose

Answer 12

150mSv

Question 13

In 2011, equivalent dose for the lens of the eye

Answer 13

20 mSv per year, averaged of 5 years, with no single year exceeding 50 mSv

Question 14

Following techniques to decrease the amount of radiation they receive

Answer 14

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

Question 15

If optimal dose rates are not used,

Answer 15

image quality will be poor and procedure will need to be repeated

Question 16

worn by a radiologic technologist or radiation assistant absorbs radiation before it reaches the user’s body

Answer 16

Leaded protection garments

Question 17

To reduce the risk of vision damage

Answer 17

Eye Protection

Question 18

May be used to protect the entire face of personnel who are exposed to radiation, most likely in the form of scatter radiation

Answer 18

Face Masks

Question 19

made of acrylic that is impregnated with lead and the head piece can be adjusted to fit the user

Answer 19

face mask

Question 20

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

Answer 20

Thyroid gland

Question 21

Protection of the thyroid gland

Answer 21

Neck shield attached a lead apron

Thyroid collar

Question 22

For Hand protection, we should be aware of where the ______

Answer 22

extremities are located in relation to the radiation beam

Question 23

Radioprotective gloves could block ___ % of scatter radiation

Answer 23

15 to 30%

Question 24

If gloved hands are in the beam’s path, a fluoroscopic machine will automatically ___

Answer 24

increase the kilovolts (raising the amount of radiation exposure

Question 25

Also less accommodating for procedures that require dexterity

Answer 25

Thicker gloves

Question 26

best options personnel lead to protect their hands during niterventional radiology and cardiology procedures

Answer 26

Time and distance

Question 27

popular garment technologists use for protection

Answer 27

lead apron

Question 28

All staff in fluoroscopy should wear

Answer 28

lead apron

Question 29

It can sufficiently protect the areas it covers from radiation

Answer 29

lead apron

Question 30

Degree of protection for lead apron depends on

Answer 30

lead’s thickness and beam’s intensity

Question 31

may receive equal or higher amount of radiation as to hands

Answer 31

Legs and feet

Question 32

the mean radiation dose to operator’s leg was

Answer 32

bet, 0.19 and 2.16 mSv per year

Question 33

While the hands received

Answer 33

bet. 0.04 and 1.25 mSv

Question 34

leg exposure can dropped to ___ when protection was used

Answer 34

approx. 0.02 mSv

Question 35

can be used to protect the legs of personnel involved with interventional procedures

Answer 35

Lead screens

Question 36

Could be constructed from used lead aprons

Answer 36

table shield

Question 37

Can be also helpful to reduce scatter radiation

Answer 37

Drape over or under a patient

Question 38

physics of radiation helps protect radiologic technologist from unwanted exposure

Answer 38

Inverse square law

Question 39

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

Answer 39

Inverse square law

Question 40

Decribes how the radiation’s energy declines

Answer 40

Defino and Day

Question 41

when a rad tech confirms she is pregnant, the first step in protecting herself and her fetus is

Answer 41

to declare her pregnancy to her employer (Declaration of Pregnancy)

Question 42

Once the declaration has been filed, fetus is treated like a

Answer 42

member of the general population

Question 43

NCRP recommends an occupational radiation fetal dose limit of

Answer 43

5.0 mSv during entire pregnancy (with a daily limit of 0.025mSv) and less than 0.5 mSv per month

Question 44

ICRP recommends less than

Answer 44

1.0mSv total fetal exposure during entire pregnacy