ARRT FINAL EXAM ACTUAL EXAM TEST BANK 400
QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED A+
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 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
, A patient has fallen on an out stretched hand and has a posterior wrist/forearm
fracture approximately one inch proximal to the carpal bones. Which type of fracture
is this?
a. Boxer
b. Smiths
c. Colles
d. Potts - ANSWER: C
A patient is in the ICU after abdominal surgery. The surgeon is concerned about a
possible perforated bowel. Thye patient's can't stand or sit. Which of the following
positions will best demonstrate any possible intra-abdominal free air?
a. ventral decubitus
b. dorsal decubitus
c. left lateral decubitus
d. right lateral decubitus - ANSWER: C
Which of the following is NOT a test performed as part of a quality-control (QC)
program to check the radiographic equipment?
A. reproducibility
B. number of repeat images due to technologist collimation errors
C. light field to radiation field alignment
D. central ray alignment - ANSWER: B
A radiograph of an AP mortise projection of the ankle reveals that the lateral
malleolus is slightly superimposed over the talus and the lateral joint space is not
open. What is most likely cause for this radiographic outcome?
a. Excessive plantar flexion of the foot and ankle
b. Excessive dorsiflexion of the foot and ankle
c. Insufficient medial rotation of the foot and ankle
d. Excessive medial rotation of the foot and ankle - ANSWER: C
Contrast resolution of a CR/DR image is determined by the _______ of the system.
a. matrix size
b. bit depth
c. sampling frequency
d. dynamic range - ANSWER: B
A radiographic image of the LPO projection of the lumber spine reveals that the
downside pedicle is projected too far posteriorly on to the vertebral body. What
specific positioning error is present on this radiographic image?
a. excessive rotation of the spine
b. tilt of the spine
c. incorrect CR placement
d. insufficient rotation of the spine - ANSWER: A
A secondary barrier is designed to absorb ____ radiation.
1. leakage 2. scattered 3. primary
QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED A+
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 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
, A patient has fallen on an out stretched hand and has a posterior wrist/forearm
fracture approximately one inch proximal to the carpal bones. Which type of fracture
is this?
a. Boxer
b. Smiths
c. Colles
d. Potts - ANSWER: C
A patient is in the ICU after abdominal surgery. The surgeon is concerned about a
possible perforated bowel. Thye patient's can't stand or sit. Which of the following
positions will best demonstrate any possible intra-abdominal free air?
a. ventral decubitus
b. dorsal decubitus
c. left lateral decubitus
d. right lateral decubitus - ANSWER: C
Which of the following is NOT a test performed as part of a quality-control (QC)
program to check the radiographic equipment?
A. reproducibility
B. number of repeat images due to technologist collimation errors
C. light field to radiation field alignment
D. central ray alignment - ANSWER: B
A radiograph of an AP mortise projection of the ankle reveals that the lateral
malleolus is slightly superimposed over the talus and the lateral joint space is not
open. What is most likely cause for this radiographic outcome?
a. Excessive plantar flexion of the foot and ankle
b. Excessive dorsiflexion of the foot and ankle
c. Insufficient medial rotation of the foot and ankle
d. Excessive medial rotation of the foot and ankle - ANSWER: C
Contrast resolution of a CR/DR image is determined by the _______ of the system.
a. matrix size
b. bit depth
c. sampling frequency
d. dynamic range - ANSWER: B
A radiographic image of the LPO projection of the lumber spine reveals that the
downside pedicle is projected too far posteriorly on to the vertebral body. What
specific positioning error is present on this radiographic image?
a. excessive rotation of the spine
b. tilt of the spine
c. incorrect CR placement
d. insufficient rotation of the spine - ANSWER: A
A secondary barrier is designed to absorb ____ radiation.
1. leakage 2. scattered 3. primary
