RTBC A+ SAFETY EXAM PREP: LATEST VERSION
ENGAGING QUESTIONS AND ANSWERS (100%
ACCURATE)
During Compton interactions, the incident x-ray photon interacts with what
portion of an atom?
outer shell electron
Photons produced outside of the actual focal spot are known as:
off-focus radiation
Per the NCRP, personnel protective lead aprons used during fluoroscopy should
be at least:
0.50 millimeters of lead equivalent
Radiation dose reduction that is a result of using protective shielding is based on
what 2 things?
Material of the shield
Thickness of the shield
Which radiation quantity units are supplied for fluoroscopic exams?
Air kerma
The risk of cancer is estimated by calculating the:
effective dose
The measurement of the rate at which electrons flow is known as:
Amperage
A patient in the ER requires a mobile chest x ray. What effort would BEST reduce
radiation to the technologist?
Standing 6 feet away from the x-ray tube during the exposure
During a fluoroscopic procedure, what effort would BEST reduce radiation
exposure to the technologist?
Minimizing the time spent in the procedure
What international system of units (SI) is used to express exposure?
Coulombs/Kilogram
Which two are included in the total filtration of the x-ray beam?
, Added filtration
Inherent filtration
The risk of cancer is estimated by calculating the:
effective dose
Which two are controlled by kVp?
Beam quality
Electric potential
What is the purpose of primary beam restriction?
keep the amount of tissue irradiation to a minimum
improve image quality
reduce patient exposure
reduce scatter production
What is a type of ionizing radiation?
X-rays
Which shell of an atom has the lowest binding energy?
outer shell
What is the BEST way to monitor whole-body radiation dose?
personnel dosimeter
Which may alert fluoroscopic x-ray production after a preset period of time?
Cumulative timer
Which beam restriction device is the most versatile for defining the size and
shape of the radiographic beam?
Collimator
The safety features of a fluoroscopic unit do not include a:
high grid ratio
Personnel dosimeters should always be worn at the:
collar, outside the lead apron
ENGAGING QUESTIONS AND ANSWERS (100%
ACCURATE)
During Compton interactions, the incident x-ray photon interacts with what
portion of an atom?
outer shell electron
Photons produced outside of the actual focal spot are known as:
off-focus radiation
Per the NCRP, personnel protective lead aprons used during fluoroscopy should
be at least:
0.50 millimeters of lead equivalent
Radiation dose reduction that is a result of using protective shielding is based on
what 2 things?
Material of the shield
Thickness of the shield
Which radiation quantity units are supplied for fluoroscopic exams?
Air kerma
The risk of cancer is estimated by calculating the:
effective dose
The measurement of the rate at which electrons flow is known as:
Amperage
A patient in the ER requires a mobile chest x ray. What effort would BEST reduce
radiation to the technologist?
Standing 6 feet away from the x-ray tube during the exposure
During a fluoroscopic procedure, what effort would BEST reduce radiation
exposure to the technologist?
Minimizing the time spent in the procedure
What international system of units (SI) is used to express exposure?
Coulombs/Kilogram
Which two are included in the total filtration of the x-ray beam?
, Added filtration
Inherent filtration
The risk of cancer is estimated by calculating the:
effective dose
Which two are controlled by kVp?
Beam quality
Electric potential
What is the purpose of primary beam restriction?
keep the amount of tissue irradiation to a minimum
improve image quality
reduce patient exposure
reduce scatter production
What is a type of ionizing radiation?
X-rays
Which shell of an atom has the lowest binding energy?
outer shell
What is the BEST way to monitor whole-body radiation dose?
personnel dosimeter
Which may alert fluoroscopic x-ray production after a preset period of time?
Cumulative timer
Which beam restriction device is the most versatile for defining the size and
shape of the radiographic beam?
Collimator
The safety features of a fluoroscopic unit do not include a:
high grid ratio
Personnel dosimeters should always be worn at the:
collar, outside the lead apron
