CAMRT Certification Exam 2026/2027 |
Full Exam Review | Study Notes, Questions
& Explanations
How far away must the operator stand from the xray tube if not covered with
lead? - correct answer-3 meters
90% of man made radiation to the population is related to? - correct answer-
Medical Radiography and Dental
For each peak xray voltage, what lead equivalent is required?
100kV or less (o-100)
Between 101kV-149kV
150kV or greater (150+) - correct answer-0-100kV = 0.25mm of lead
Greater than 100kV but less then 150kV = 0.35mm of lead
150kV or greater = 0.50mm of lead
What protective equipment is required during interventional procedures - correct
answer-Full wrap around protective gowns of 0.50mm pb in the front panels and
0.25mm pb in the back panels
,Thyroid shields with an equivalent of 0.50mm of pb
Lead drapes/curtains mounted to II of 0.25mm of pb at 100kv
What lead equivalent must protective gloves/ gauntlets possess? - correct
answer-0.25mm of pb
What lead equivalent must ceiling mounted lead screens and moveable shields
provide? - correct answer-0.50mm of pb
What are the annual radiation dose limits for radiation workers? - correct answer-
Whole body= 20mSv
Lens of eye= 150mSv
Skin = 500mSv
Hands = 150mSv
All other organs = 500mSv
For pregnant women an effective dose of 4 mSv must be applied for the
remainder of the pregnancy from all sources
What are the annual radiation dose limits to members of the public? - correct
answer-Whole body = 1mSv
Lens of the eye= 15mSv
Skin = 50mSv
Hands = 50mSv
, All other organs = 50mSv
*these also apply for students*
What are primary protective barriers? Give examples - correct answer-Primary
barriers provide shielding from the direct xray beam. Such as, the walls and floor
where the tube can be directed
-The wall behind the wall bucky
-Floor under the table
What are secondary barriers and give examples - correct answer-Provide
shielding against both leakage and scattered radiation. Walls that the primary
beam is not directed towards and the ceiling are secondary barriers.
The control booth is also a secondary barrier, the primary beam should never be
directed towards it.
What should the focal spot to skin distance be for:
-Mobile equipment
-Stationary equipment
-Radioscopic equipment - correct answer-Must not be less than:
-Mobile: 30cm
-Stationary: 38cm
Full Exam Review | Study Notes, Questions
& Explanations
How far away must the operator stand from the xray tube if not covered with
lead? - correct answer-3 meters
90% of man made radiation to the population is related to? - correct answer-
Medical Radiography and Dental
For each peak xray voltage, what lead equivalent is required?
100kV or less (o-100)
Between 101kV-149kV
150kV or greater (150+) - correct answer-0-100kV = 0.25mm of lead
Greater than 100kV but less then 150kV = 0.35mm of lead
150kV or greater = 0.50mm of lead
What protective equipment is required during interventional procedures - correct
answer-Full wrap around protective gowns of 0.50mm pb in the front panels and
0.25mm pb in the back panels
,Thyroid shields with an equivalent of 0.50mm of pb
Lead drapes/curtains mounted to II of 0.25mm of pb at 100kv
What lead equivalent must protective gloves/ gauntlets possess? - correct
answer-0.25mm of pb
What lead equivalent must ceiling mounted lead screens and moveable shields
provide? - correct answer-0.50mm of pb
What are the annual radiation dose limits for radiation workers? - correct answer-
Whole body= 20mSv
Lens of eye= 150mSv
Skin = 500mSv
Hands = 150mSv
All other organs = 500mSv
For pregnant women an effective dose of 4 mSv must be applied for the
remainder of the pregnancy from all sources
What are the annual radiation dose limits to members of the public? - correct
answer-Whole body = 1mSv
Lens of the eye= 15mSv
Skin = 50mSv
Hands = 50mSv
, All other organs = 50mSv
*these also apply for students*
What are primary protective barriers? Give examples - correct answer-Primary
barriers provide shielding from the direct xray beam. Such as, the walls and floor
where the tube can be directed
-The wall behind the wall bucky
-Floor under the table
What are secondary barriers and give examples - correct answer-Provide
shielding against both leakage and scattered radiation. Walls that the primary
beam is not directed towards and the ceiling are secondary barriers.
The control booth is also a secondary barrier, the primary beam should never be
directed towards it.
What should the focal spot to skin distance be for:
-Mobile equipment
-Stationary equipment
-Radioscopic equipment - correct answer-Must not be less than:
-Mobile: 30cm
-Stationary: 38cm
