RAD 105 EXAM SCRIPT 2025 QUESTIONS AND ANSWERS
RATED A+
✔✔generator control - ✔✔interface between the radiographer and the electronics of the
x ray machine
✔✔Automatic Exposure Control, sensors on chest unit - ✔✔what does AEC stand for?
what is it?
✔✔peak kilovoltage - ✔✔kVp
✔✔Miliampere Seconds - ✔✔mA
✔✔film screen
computed radiography(CR) & IR (PSP) must also have a reader - ✔✔cassette based
systems
✔✔Digital radiography systems (DR) - ✔✔flat panel technology, use thin film transistors
✔✔DR indirect - ✔✔amorphous silicon
✔✔DR direct - ✔✔amorphous selenium
✔✔that absorbed in the detector and able to be converted into a radiographic image for
interpretation - ✔✔the only radiation that is of clinical value
✔✔Flouroscopy - ✔✔Can view the anatomy in real time using a computer screen, tube
is under the patient
✔✔mobile flouroscopy - ✔✔uses C arm
✔✔As Low As Reasonably Achievable - ✔✔ALARA
✔✔3 things necessary to create an x ray - ✔✔1. source of electrons (cathode end of
tube)
2. a force to move electrons rapidly (kVp)
3. something to stop the movement of electrons quickly= deceleration (anode)
✔✔true - ✔✔the x ray beam is heterogeneous which means that many x ray photons
vary in intensity. (T/F)
✔✔thompson and classic scattering - ✔✔Classic coherent scattering is also called
, ✔✔compton - ✔✔This type of interaction is within the diagnostic ranges of x-ray, and
accounts for most of radiation workers' exposure
✔✔gray - ✔✔A rad, in International System units, is the
✔✔Rad - ✔✔A rem is equal to a ____ multiplied by a Quality Factor
✔✔Roentgen - ✔✔This unit of measurement is not used to express radiation in people,
but radiation exposure in air.
✔✔50mSv or 5rem - ✔✔annual whole body effective dose limit for an occupational
worker is
✔✔Law of bergonie and tribondeau - ✔✔-Cells are more radiosensitive during active
division and when they are primitive in structure and function.
-Cells are more radioresistant if they are more specialized in structure and function and
do not undergo repeated mitosis.
✔✔time, distance, shielding - ✔✔cardinal rules of radiation protection
✔✔absorbtion, transfer than scatter, transmission - ✔✔3 things that can happen to an x
ray beam
✔✔die, repair, divide in damaged state - ✔✔3 responses of cells to radiation
✔✔early effects of radiation - ✔✔1. bone marrow syndrome (infection, hemmorrhage
anemia)
2. gastrointestinal syndrome (NVD)
3. central nervous system syndrome (seizures, coma, eventual death)
✔✔late effects of radiation - ✔✔develop over a long time after exposure
1. somatic effects (cataracts, cancer)
2. genetic effects (germ cell damage, possible mutations to offspring)
✔✔acute radiation syndrome - ✔✔high whole body exposure in a short period of time
✔✔threshold dose - ✔✔fictional, amount of safe radiation a person can be exposed to
✔✔Maslow's Hierarchy of Needs - ✔✔physiological, safety, love/belonging,
esteem,need to know/understand, aesthetics, self-actualization
✔✔emotional support, emphasis, palpation - ✔✔appropriate touching includes
✔✔birth-1 - ✔✔infant age
RATED A+
✔✔generator control - ✔✔interface between the radiographer and the electronics of the
x ray machine
✔✔Automatic Exposure Control, sensors on chest unit - ✔✔what does AEC stand for?
what is it?
✔✔peak kilovoltage - ✔✔kVp
✔✔Miliampere Seconds - ✔✔mA
✔✔film screen
computed radiography(CR) & IR (PSP) must also have a reader - ✔✔cassette based
systems
✔✔Digital radiography systems (DR) - ✔✔flat panel technology, use thin film transistors
✔✔DR indirect - ✔✔amorphous silicon
✔✔DR direct - ✔✔amorphous selenium
✔✔that absorbed in the detector and able to be converted into a radiographic image for
interpretation - ✔✔the only radiation that is of clinical value
✔✔Flouroscopy - ✔✔Can view the anatomy in real time using a computer screen, tube
is under the patient
✔✔mobile flouroscopy - ✔✔uses C arm
✔✔As Low As Reasonably Achievable - ✔✔ALARA
✔✔3 things necessary to create an x ray - ✔✔1. source of electrons (cathode end of
tube)
2. a force to move electrons rapidly (kVp)
3. something to stop the movement of electrons quickly= deceleration (anode)
✔✔true - ✔✔the x ray beam is heterogeneous which means that many x ray photons
vary in intensity. (T/F)
✔✔thompson and classic scattering - ✔✔Classic coherent scattering is also called
, ✔✔compton - ✔✔This type of interaction is within the diagnostic ranges of x-ray, and
accounts for most of radiation workers' exposure
✔✔gray - ✔✔A rad, in International System units, is the
✔✔Rad - ✔✔A rem is equal to a ____ multiplied by a Quality Factor
✔✔Roentgen - ✔✔This unit of measurement is not used to express radiation in people,
but radiation exposure in air.
✔✔50mSv or 5rem - ✔✔annual whole body effective dose limit for an occupational
worker is
✔✔Law of bergonie and tribondeau - ✔✔-Cells are more radiosensitive during active
division and when they are primitive in structure and function.
-Cells are more radioresistant if they are more specialized in structure and function and
do not undergo repeated mitosis.
✔✔time, distance, shielding - ✔✔cardinal rules of radiation protection
✔✔absorbtion, transfer than scatter, transmission - ✔✔3 things that can happen to an x
ray beam
✔✔die, repair, divide in damaged state - ✔✔3 responses of cells to radiation
✔✔early effects of radiation - ✔✔1. bone marrow syndrome (infection, hemmorrhage
anemia)
2. gastrointestinal syndrome (NVD)
3. central nervous system syndrome (seizures, coma, eventual death)
✔✔late effects of radiation - ✔✔develop over a long time after exposure
1. somatic effects (cataracts, cancer)
2. genetic effects (germ cell damage, possible mutations to offspring)
✔✔acute radiation syndrome - ✔✔high whole body exposure in a short period of time
✔✔threshold dose - ✔✔fictional, amount of safe radiation a person can be exposed to
✔✔Maslow's Hierarchy of Needs - ✔✔physiological, safety, love/belonging,
esteem,need to know/understand, aesthetics, self-actualization
✔✔emotional support, emphasis, palpation - ✔✔appropriate touching includes
✔✔birth-1 - ✔✔infant age
