ARRT Final Exam CERTIFIED QUESTIONS
AND CORRECT ANSWERS (VERIFIED
ANSWERS
A MRI procedure is contraindicated for a patient who has:
a. a pacemaker that was placed 15 years ago
b. dental fillings
c. subdural bleeding
d. scoliosis - ANSWER>>A
A PA chest image reveals that only eight ribs are seen above the diaphragm.
Which of the following suggestions would improve the inspirtations of lungs?
a. use higher kV to penetrate the diaphragm
b. perform the chest position supine
c. take the exposure on the second inspiration rather than on first
d. use a shorter exposure time - ANSWER>>C
A PA chest radiograph reveals that the left sternoclavicular joint is
superimposed upon the spine and the right joint is open and farther from the
spine. What specific positioning error has been committed?
a. left tilt
b. rotation into the LAO position
c. right tilt
d. rotation into the RAO position - ANSWER>>B
,A ____ response to radiation is directly proportional to the dose received.
a. linear
b. nonlinear
c. curvilinear
d. nonthreshold - ANSWER>>
A critique of this image demonstrates which repeatable error?
a. extension of the skull
b. mouth not open enough
c. flexion of the skull
d. rotation of the head to the right - ANSWER>>A
Which of the following describes the correct relationship between the quality of
the x-ray beam and the technique selected on the control panel?
a. low beam penetrability due to low kVp
b. low beam penetrability due to high kVp
c. low beam penetrability due to high mAs
d. low beam penetrability due to low mAs - ANSWER>>A
A particular radiograph was produced using 8 mAs and 84 kVp with an 8:1 ratio
grid. The image is to be repeated using a 16:1 ratio grid. What should be the
new mAs to adjust for the grid ratio change?
Grid ratio and conversion factor
5:1 ratio - conversion factor of 2
,6:1 ratio - conversion factor of 3
8:1 ratio - conversion factor of 4
12:1 ratio - conversion factor of 5
16:1 ratio - conversion factor of 6
a. 5 mAs
b. 8 mAs
c. 12 mAs
d. 20 mAs - ANSWER>>C
A patient comes to radiology with a possible mass beneath the right clavicle.
The PA and left lateral chest projections are inconclusive. Which additional
projection can be taken to demonstrate this possible mass?
a. AP and lateral of upper airway
b. right lateral
c. AP erect
d. Apical Lordotic - ANSWER>>D
A patient comes to the imaging department for a follow-up study of the cervical
spine. The patient has had a spinal fusion between C5-C6 performed six months
earlier. His physician wants to access the cervical spine for anteriorposterior
mobility. Which of the following projections would provide this assessment?
a. AP axial-vertebral arch projection
b. Judd or Fuchs position
c. Swimmers position
d. Hyperflexion and hyperextension projections - ANSWER>>D
, A patient comes to the imaging department for a study of the lumbar spine. He
has a clinical history of spondylolisthesis of L5-S1. Which of the following
projections will best demonstrate the severity of this condition?
a. 30 degree obliques
b. AP axial L5-S1
c. lateral L5-S1
d. 50 degress obliques - ANSWER>>C
A patient enters the ER with a possible basilar skull fracture. Which of the
following skull projections would best demonstrate any blood present in the
sphenoid sinus?
a. Haas method
b. AP with a 15 degree cephalic angle
c. Horizontal beam lateral projection
d. SMV - ANSWER>>C
A patient has a history of recurrent urinary tract infections. The physician is
concerned that the young child may have urinary reflux. Which of the following
procedures would best demonstrate this condition?
a. IVU
b. voiding cystourethrogram (VCUG)
c. IVU with compression
d. cystogram - ANSWER>>B
AND CORRECT ANSWERS (VERIFIED
ANSWERS
A MRI procedure is contraindicated for a patient who has:
a. a pacemaker that was placed 15 years ago
b. dental fillings
c. subdural bleeding
d. scoliosis - ANSWER>>A
A PA chest image reveals that only eight ribs are seen above the diaphragm.
Which of the following suggestions would improve the inspirtations of lungs?
a. use higher kV to penetrate the diaphragm
b. perform the chest position supine
c. take the exposure on the second inspiration rather than on first
d. use a shorter exposure time - ANSWER>>C
A PA chest radiograph reveals that the left sternoclavicular joint is
superimposed upon the spine and the right joint is open and farther from the
spine. What specific positioning error has been committed?
a. left tilt
b. rotation into the LAO position
c. right tilt
d. rotation into the RAO position - ANSWER>>B
,A ____ response to radiation is directly proportional to the dose received.
a. linear
b. nonlinear
c. curvilinear
d. nonthreshold - ANSWER>>
A critique of this image demonstrates which repeatable error?
a. extension of the skull
b. mouth not open enough
c. flexion of the skull
d. rotation of the head to the right - ANSWER>>A
Which of the following describes the correct relationship between the quality of
the x-ray beam and the technique selected on the control panel?
a. low beam penetrability due to low kVp
b. low beam penetrability due to high kVp
c. low beam penetrability due to high mAs
d. low beam penetrability due to low mAs - ANSWER>>A
A particular radiograph was produced using 8 mAs and 84 kVp with an 8:1 ratio
grid. The image is to be repeated using a 16:1 ratio grid. What should be the
new mAs to adjust for the grid ratio change?
Grid ratio and conversion factor
5:1 ratio - conversion factor of 2
,6:1 ratio - conversion factor of 3
8:1 ratio - conversion factor of 4
12:1 ratio - conversion factor of 5
16:1 ratio - conversion factor of 6
a. 5 mAs
b. 8 mAs
c. 12 mAs
d. 20 mAs - ANSWER>>C
A patient comes to radiology with a possible mass beneath the right clavicle.
The PA and left lateral chest projections are inconclusive. Which additional
projection can be taken to demonstrate this possible mass?
a. AP and lateral of upper airway
b. right lateral
c. AP erect
d. Apical Lordotic - ANSWER>>D
A patient comes to the imaging department for a follow-up study of the cervical
spine. The patient has had a spinal fusion between C5-C6 performed six months
earlier. His physician wants to access the cervical spine for anteriorposterior
mobility. Which of the following projections would provide this assessment?
a. AP axial-vertebral arch projection
b. Judd or Fuchs position
c. Swimmers position
d. Hyperflexion and hyperextension projections - ANSWER>>D
, A patient comes to the imaging department for a study of the lumbar spine. He
has a clinical history of spondylolisthesis of L5-S1. Which of the following
projections will best demonstrate the severity of this condition?
a. 30 degree obliques
b. AP axial L5-S1
c. lateral L5-S1
d. 50 degress obliques - ANSWER>>C
A patient enters the ER with a possible basilar skull fracture. Which of the
following skull projections would best demonstrate any blood present in the
sphenoid sinus?
a. Haas method
b. AP with a 15 degree cephalic angle
c. Horizontal beam lateral projection
d. SMV - ANSWER>>C
A patient has a history of recurrent urinary tract infections. The physician is
concerned that the young child may have urinary reflux. Which of the following
procedures would best demonstrate this condition?
a. IVU
b. voiding cystourethrogram (VCUG)
c. IVU with compression
d. cystogram - ANSWER>>B
