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RTE 2824 Exam 2 Review with Complete Solution
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RTE 2824 Exam 2 Review with Complete Solution
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RTE 2824 Exam 2 Review with Complete SolutionsA fracture involving the facial bones where a blow to one side causes a fracture to the
opposite side is termed a ____ fracture. - ANSWER-Contrecoupe
A patient comes in with a clinical history of a possible pituitary adenoma. Because this
is a rural hospital, CT and MRI are not available. Which radiographic projection or
position would best demonstrate signs of bony erosion of the sella turcica because of
the tumor? - ANSWER-lateral
A patient comes to radiology for a routine study of the cranium. He is unable to flex his
head and neck sufficiently to place the OML perpendicular to the IR for the AP axial
projection. What should the technologist do to compensate for this problem without
creating excessive magnification of the occipital bone? - ANSWER-Use the IOML and
increase angulation by 7 degrees
A patient comes to radiology for a sinus series on a cart (gurney). She is unable to
stand or sit erect for any of the projections. Which of the following projections will best
detect any air/fluid levels present in the maxillary sinuses? - ANSWER-horizontal beam
lateral
A patient comes to radiology with a clinical history of an acoustic neuroma. Which of the
following imaging modalities will provide the best assessment for this tumor? -
ANSWER-MRI
A patient comes to radiology with a history of a possible erosion of the superior orbital
fissures. Which of the following projections would best demonstrate this structure? -
ANSWER-PA axial w/ 25 to 30 degree caudal angle to OML
A patient comes to radiology with a possible bone cyst within the squamous portion of
the frontal bone. Which of the following projections would best demonstrate this region
with a minimal amount of distortion of the frontal bone? - ANSWER-PA with no CR
angulation to OML
A patient enters the ED with a possible fracture of the right zygomatic arch. Which of the
following routines would best diagnose a possible fracture of this structure? - ANSWER-
Submentovertex, bilateral oblique inferosuperior (tangential), and AP axial projections
A patient enters the ED with a possible nasal bone fracture. The physician is concerned
about a possible bony nasal septum deviation and fractured nasal bones. Which of the
following routines would best diagnose these injuries? - ANSWER-Parietoacanthial,
lateral nasal bone, and superoinferior (axial) projections
A patient enters the ED with facial bone injuries. The physician is concerned about a
possible blow-out fracture of the left orbit. Which one of the following projections would
, best diagnose this injury? - ANSWER-Modified parietocanthial, 30 degree PA facial
bone, and lateral facial bone projections.
A patient enters the emergency department (ED) with a possible basilar skull fracture.
Which of the following skull projections would best demonstrate any blood present in the
sphenoid sinus? - ANSWER-Horizontal beam lateral
A pediatric patient enters radiology for a paranasal sinus series. Because of her age,
the child is unable to hold still for the projections even with the use of immobilization
devices. The decision is to hold the child during each exposure. Which of the following
individuals should be asked to hold the child? - ANSWER-The guardian
A radiograph of a lateral cranium reveals that the mentum of the mandible was cut off
from the bottom of the radiograph. A 24 ´ 30-cm (10 ´ 12-inch) IR was used, and it was
placed landscape. What must be altered if a repeat exposure is performed? - ANSWER-
None of the above, all of the critical structures were demonstrated
A radiograph of a lateral projection of the cranium reveals that the orbital roofs (plates)
are not superimposed—one is slightly superior to the other. Which of the following
positioning errors led to this radiographic outcome? - ANSWER-tilt
A radiograph of a PA Caldwell (15° caudad) projection for cranium reveals that the
petrous ridges are projected into the lower one-third of the orbits. Which of the following
modifications should be made during the repeat exposure to produce a more diagnostic
image? - ANSWER-Do nothing
A radiograph of a PA projection of the sinuses reveals that the petrous ridges are
projected over the ethmoid sinuses. Which of the following modifications will eliminate
this superimposition while not compromising diagnostic quality of the study? -
ANSWER-Increase extension to head and neck slightly
A radiograph of a parieto-orbital oblique projection for the optic foramen reveals that the
optic foramen is projected into the maxillary sinus. Which of the following modifications
is necessary to produce a more diagnostic image? - ANSWER-Decrease the extension
of the head and neck
A radiograph of a parietoacanthial (Waters method) projection reveals that the petrous
ridges are superimposed over the lower 30% of the maxillary sinuses. What specific
positioning error (if any) led to this radiographic finding? - ANSWER-Insufficient
extension
A radiograph of a parietoacanthial (Waters) projection for sinuses reveals that the
petrous pyramids are projected over the maxillary sinuses. What positioning error is
present on this radiograph? - ANSWER-Excessive flexion
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