ARRT REGISTRY UPDATED EXAM TEST QUESTIONS AND
ANSWERS SURE A+
✔✔Image Acquisition-Digital - ✔✔-Utilizes and active matrix array (AMA) as the image
receptor within the radiographic table does not require the use of imaging cassettes
-Has high detective quantum efficiency (DQE)- percentage of x-rays absorbed by the
image receptor which losers patient dose
✔✔Digital Indirect Capture Detector - ✔✔-3 step process
-Scintillator-based system-use cesium iodide or dadolinium oxysulfide
-1)scintillator converts x-ray photons into light photons
2)Light photons are emitted from the scintillator which then interact with a
photoconductive material made of amorphous silicon which converts the light photons
into electrons
3)The electrons migrate to thin film transistors (TFT) and converts them into electronic
signals
✔✔Digital Direct Capture Detector - ✔✔-2 step process, non-scintillator
-Uses amorphous selenium which converts the x-ray beam into electrons that are
collected by the thin film transistor
-Provides better spatial resolution compared to the scintillator/indirect detector
✔✔Charged Coupled Devices (CCD) - ✔✔-Require a scintillator material to produce
light (indirect form capture)
-Light from the scintillator strikes the CCD and is converted into an electronic signal
-Signal is sent to an analog-to-digital converter where it becomes a data set to form the
digital image
✔✔Light Field the Radiation Field Alignment - ✔✔Must be within +/- 2% of the SID
ex: SID of 100 cm (40 inches) the radiation field must be +/- 2 cm around the perimeter
of the light field
✔✔Quality control tests - ✔✔Linearity= +/- 10%
Reproducibility= +/- 5%
✔✔Spin Top Test - ✔✔-For single phase units
- Should yield a visible number of dots of density
-For half wave rectified unit= 60 x time
-For full wave rectified unit= 120 x time
✔✔Synchronous Timer - ✔✔-Used to check the timer accuracy of a three phase unit
-The degrees of the density arch are divided by 360° to determine the exposure time
✔✔Artifacts - ✔✔-Positive density= After Exposure (After/Black)
Static Discharge- black branches
, Pi Lines from processor rollers
-Negative density=Before Exposure (Before/White)
Guide Shoes scratches- scrapes the emulsion
off the film
✔✔Anterior or Ventral - ✔✔Toward the front of the body
✔✔Posterior or Dorsal - ✔✔Toward the back of the body
✔✔Cranial, Cephalad, or Superior - ✔✔Toward the head
✔✔Caudal, Caudad, or Inferior - ✔✔Toward the feet
✔✔Proximal - ✔✔Toward the center, midline, or trunk
✔✔Distal - ✔✔Away from the center, midline, or trunk
✔✔Medial - ✔✔Toward the middle of a part or toward the median plane of the body
✔✔Lateral - ✔✔Away from the middle of a part or away from the median plane of the
body
✔✔Adduction - ✔✔Movement of parts toward the median plane or toward the axial line
of a limb
✔✔Abduction - ✔✔Movement of parts away from the median plane or from the axial line
of limb
✔✔Plantar - ✔✔posterior portion of the foot
✔✔Palmar - ✔✔anterior surface of the hand
✔✔Pronate - ✔✔Palm down
✔✔Supinate - ✔✔Palm up
✔✔Fexion - ✔✔Decreasing the angle of a joint
✔✔Extension - ✔✔Increasing the angle of a joint
✔✔Inversion/Eversion - ✔✔Internal and external stress applied to the ankle joint
✔✔Rotation - ✔✔The movement of a part around its axis
ANSWERS SURE A+
✔✔Image Acquisition-Digital - ✔✔-Utilizes and active matrix array (AMA) as the image
receptor within the radiographic table does not require the use of imaging cassettes
-Has high detective quantum efficiency (DQE)- percentage of x-rays absorbed by the
image receptor which losers patient dose
✔✔Digital Indirect Capture Detector - ✔✔-3 step process
-Scintillator-based system-use cesium iodide or dadolinium oxysulfide
-1)scintillator converts x-ray photons into light photons
2)Light photons are emitted from the scintillator which then interact with a
photoconductive material made of amorphous silicon which converts the light photons
into electrons
3)The electrons migrate to thin film transistors (TFT) and converts them into electronic
signals
✔✔Digital Direct Capture Detector - ✔✔-2 step process, non-scintillator
-Uses amorphous selenium which converts the x-ray beam into electrons that are
collected by the thin film transistor
-Provides better spatial resolution compared to the scintillator/indirect detector
✔✔Charged Coupled Devices (CCD) - ✔✔-Require a scintillator material to produce
light (indirect form capture)
-Light from the scintillator strikes the CCD and is converted into an electronic signal
-Signal is sent to an analog-to-digital converter where it becomes a data set to form the
digital image
✔✔Light Field the Radiation Field Alignment - ✔✔Must be within +/- 2% of the SID
ex: SID of 100 cm (40 inches) the radiation field must be +/- 2 cm around the perimeter
of the light field
✔✔Quality control tests - ✔✔Linearity= +/- 10%
Reproducibility= +/- 5%
✔✔Spin Top Test - ✔✔-For single phase units
- Should yield a visible number of dots of density
-For half wave rectified unit= 60 x time
-For full wave rectified unit= 120 x time
✔✔Synchronous Timer - ✔✔-Used to check the timer accuracy of a three phase unit
-The degrees of the density arch are divided by 360° to determine the exposure time
✔✔Artifacts - ✔✔-Positive density= After Exposure (After/Black)
Static Discharge- black branches
, Pi Lines from processor rollers
-Negative density=Before Exposure (Before/White)
Guide Shoes scratches- scrapes the emulsion
off the film
✔✔Anterior or Ventral - ✔✔Toward the front of the body
✔✔Posterior or Dorsal - ✔✔Toward the back of the body
✔✔Cranial, Cephalad, or Superior - ✔✔Toward the head
✔✔Caudal, Caudad, or Inferior - ✔✔Toward the feet
✔✔Proximal - ✔✔Toward the center, midline, or trunk
✔✔Distal - ✔✔Away from the center, midline, or trunk
✔✔Medial - ✔✔Toward the middle of a part or toward the median plane of the body
✔✔Lateral - ✔✔Away from the middle of a part or away from the median plane of the
body
✔✔Adduction - ✔✔Movement of parts toward the median plane or toward the axial line
of a limb
✔✔Abduction - ✔✔Movement of parts away from the median plane or from the axial line
of limb
✔✔Plantar - ✔✔posterior portion of the foot
✔✔Palmar - ✔✔anterior surface of the hand
✔✔Pronate - ✔✔Palm down
✔✔Supinate - ✔✔Palm up
✔✔Fexion - ✔✔Decreasing the angle of a joint
✔✔Extension - ✔✔Increasing the angle of a joint
✔✔Inversion/Eversion - ✔✔Internal and external stress applied to the ankle joint
✔✔Rotation - ✔✔The movement of a part around its axis
