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RTE 1814 Exam 3 Review Graded A+
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RTE 1814 Exam 3 Review Graded A+
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RTE 1814 Exam 3 Review Graded A+A congenital defect characterized by anterior protrusion of the lower sternum and
xiphoid process is termed? - ANSWER-Pectus carinatum
A geriatric patient comes to radiology for a lumbar spine series. She has severe
kyphosis of the thoracolumbar spine. Which one of the following modifications should be
applied to this patient? - ANSWER-Perform all projections erect
A key advantage of a PA projection taken during a pediatric scoliosis study as
compared with the AP projection is? - ANSWER-It reduces breast and thyroid dose by
90%
A PA radiograph of the SC joints demonstrates unequal distance from the SC joints to
the midline of the spine. The left SC joint is farther from the sternum than the right. What
specific positioning error is present on this radiograph? - ANSWER-Slight right rotation
A patient comes in with possible compression fracture of L3. Which one of the following
positioning routines would best demonstrate the body of L-3 and the intervertebral joint
space above and below it? - ANSWER-Collimated PA and lateral projections
A patient comes to radiology for a follow up study of the lumbar spine. The patient had a
spinal fusion performed at the level of L3-L4 four months earlier. Which of the following
would best demonstrate the degree of movement at the fusion site? - ANSWER-Lateral
hyperflexion and hyperextension
A patient comes to radiology for a study of the lumbar spine. He has a clinical history of
spondylolisthesis of L-5. Which of the following projection will best demonstrate the
severity of this condition? - ANSWER-Lateral
A patient comes to radiology for a study of the lumbar spine. The initial radiographs
demonstrate potential pathology involving the L5-S1 zygapohyseal joints. Which of the
following positions and/or projections would best demonstrate this joint space? -
ANSWER-Right and left 30 degree oblique projections
A patient enters the ED with an injury to the left anterior lower ribs. Which of the
following projections should be taken to demonstrate the involved area? - ANSWER-PA
and RAO
A patient enters the ED with blunt trauma to the sternum. The patient is in great pain
and cannot lie prone on the table or stand erect. Which of the following positioning
routines would be best for the sternum examination in this situation? - ANSWER-LPO
and horizontal beam lateral projection
, A patient enters the ED with trauma to the bony thorax. The initial radiographs reveal
that there are fractured ribs and a possible pneumothorax of the left thorax. The
physician orders a chest study to confirm the pneumothorax; however, the patient
cannot stand. Which of the following positions would best demonstrate the
pneumothorax? - ANSWER-Right lateral decubitus
A patient with metastatic disease in the ribs comes to radiology following a NM scan.
The radiologist orders a right upper posterior rib study. Which of the following
positioning factors should be followed for this specific study? - ANSWER-Both A&C
(Perform position erect if the patient's condition permits and include the RPO position as
part of the positioning routine)
A radiograph of a lateral projection of lumbar spine reveals that the mid-to-lower
intervertebral joint spaces are not open. The patient waist was supported. Which of the
following modifications will help open these joint spaces during the repeat exposure? -
ANSWER-Increase waist support and/or angle CR 5 to 8 caudal
A radiograph of an AP axial coccyx, reveals that the symphysis pubis is superimposed
over distal end of the coccyx. Which of the following modifications will correct this
problem during the repeat exposure? - ANSWER-Increase the CR angle
A radiograph of an AP axial L5-S1 projection reveals that the joint space is not open.
The following factors were used: 80kv, 40" SID, grid, 35 caudal angle, and CR centered
to ASIS. Which of the following factors needs to be modified to produce a more
diagnostic image? - ANSWER-Change the direction of the CR angle
A radiograph of an AP axial sacrum reveals that it is foreshortened and the sacral
foramina are not clearly seen. The patient was in an AP supine position and the
technologist angled the CR 5-7 cephald. What specific positioning error is present on
this radiograph? - ANSWER-Insufficient CR angle
A radiograph of an AP projection of the lumbar spine on an average size pt reveals that
the psoas major muscles and transverse process are not visible. The following factors
were used for the projections: 95kv, AEC (center chamber), 40" SID, grid, and a 14x17
IR. Which of the following modifications will be most effective in demonstrating these
structures? - ANSWER-Decrease kVp
A radiograph of an LPO projection of the lumbar spine reveals that the downside pedicle
is projected too far posterior on the vertebral body. What specific positioning error is
present on this radiograph? - ANSWER-Excessive rotation
A radiograph of an RAO position of the ribs demonstrates the left axillary ribs are
foreshortened, whereas the right side is elongated. Which of the following is the most
likely reason for this radiographic outcome? - ANSWER-An LAO was performed instead
of the RAO
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