RAD 105 MIDTERM EXAM
QUESTIONS WITH 100% CORRECT
ANSWERS
Automatic Exposure Control, sensors on chest unit - Answer-what does AEC stand for?
what is it?
peak kilovoltage - Answer-kVp
Miliampere Seconds - Answer-mA
film screen
computed radiography(CR) & IR (PSP) must also have a reader - Answer-cassette
based systems
Digital radiography systems (DR) - Answer-flat panel technology, use thin film
transistors
DR indirect - Answer-amorphous silicon
DR direct - Answer-amorphous selenium
that absorbed in the detector and able to be converted into a radiographic image for
interpretation - Answer-the only radiation that is of clinical value
Flouroscopy - Answer-Can view the anatomy in real time using a computer screen, tube
is under the patient
mobile flouroscopy - Answer-uses C arm
As Low As Reasonably Achievable - Answer-ALARA
3 things necessary to create an x ray - Answer-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 - Answer-the x ray beam is heterogeneous which means that many x ray photons
vary in intensity. (T/F)
thompson and classic scattering - Answer-Classic coherent scattering is also called
, compton - Answer-This type of interaction is within the diagnostic ranges of x-ray, and
accounts for most of radiation workers' exposure
gray - Answer-A rad, in International System units, is the
Rad - Answer-A rem is equal to a ____ multiplied by a Quality Factor
Roentgen - Answer-This unit of measurement is not used to express radiation in people,
but radiation exposure in air.
50mSv or 5rem - Answer-annual whole body effective dose limit for an occupational
worker is
Law of bergonie and tribondeau - Answer--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 - Answer-cardinal rules of radiation protection
absorbtion, transfer than scatter, transmission - Answer-3 things that can happen to an
x ray beam
die, repair, divide in damaged state - Answer-3 responses of cells to radiation
early effects of radiation - Answer-1. bone marrow syndrome (infection, hemmorrhage
anemia)
2. gastrointestinal syndrome (NVD)
3. central nervous system syndrome (seizures, coma, eventual death)
late effects of radiation - Answer-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 - Answer-high whole body exposure in a short period of time
threshold dose - Answer-fictional, amount of safe radiation a person can be exposed to
Maslow's Hierarchy of Needs - Answer-physiological, safety, love/belonging,
esteem,need to know/understand, aesthetics, self-actualization
emotional support, emphasis, palpation - Answer-appropriate touching includes
birth-1 - Answer-infant age
QUESTIONS WITH 100% CORRECT
ANSWERS
Automatic Exposure Control, sensors on chest unit - Answer-what does AEC stand for?
what is it?
peak kilovoltage - Answer-kVp
Miliampere Seconds - Answer-mA
film screen
computed radiography(CR) & IR (PSP) must also have a reader - Answer-cassette
based systems
Digital radiography systems (DR) - Answer-flat panel technology, use thin film
transistors
DR indirect - Answer-amorphous silicon
DR direct - Answer-amorphous selenium
that absorbed in the detector and able to be converted into a radiographic image for
interpretation - Answer-the only radiation that is of clinical value
Flouroscopy - Answer-Can view the anatomy in real time using a computer screen, tube
is under the patient
mobile flouroscopy - Answer-uses C arm
As Low As Reasonably Achievable - Answer-ALARA
3 things necessary to create an x ray - Answer-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 - Answer-the x ray beam is heterogeneous which means that many x ray photons
vary in intensity. (T/F)
thompson and classic scattering - Answer-Classic coherent scattering is also called
, compton - Answer-This type of interaction is within the diagnostic ranges of x-ray, and
accounts for most of radiation workers' exposure
gray - Answer-A rad, in International System units, is the
Rad - Answer-A rem is equal to a ____ multiplied by a Quality Factor
Roentgen - Answer-This unit of measurement is not used to express radiation in people,
but radiation exposure in air.
50mSv or 5rem - Answer-annual whole body effective dose limit for an occupational
worker is
Law of bergonie and tribondeau - Answer--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 - Answer-cardinal rules of radiation protection
absorbtion, transfer than scatter, transmission - Answer-3 things that can happen to an
x ray beam
die, repair, divide in damaged state - Answer-3 responses of cells to radiation
early effects of radiation - Answer-1. bone marrow syndrome (infection, hemmorrhage
anemia)
2. gastrointestinal syndrome (NVD)
3. central nervous system syndrome (seizures, coma, eventual death)
late effects of radiation - Answer-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 - Answer-high whole body exposure in a short period of time
threshold dose - Answer-fictional, amount of safe radiation a person can be exposed to
Maslow's Hierarchy of Needs - Answer-physiological, safety, love/belonging,
esteem,need to know/understand, aesthetics, self-actualization
emotional support, emphasis, palpation - Answer-appropriate touching includes
birth-1 - Answer-infant age
