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RTE 2824 Final Exam Review
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RTE 2824 Final Exam Review
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RTE 2824 Final Exam ReviewA PA axial projection with a 25° caudad angle of the cranium reveals that the petrous
ridges are at the level of the superior orbital margins. Which of the following
modifications are required to correct this error? - Increase extension of cranium
A patient arrives at the medical imaging department for a skull series after being hit in
the head by a softball. The patient comes to you with a cervical collar, but it is apparent
that the collar may not be needed because the patient is turning his head to converse
with you as the examination starts. A professional imaging technologist would -
complete the skull images with the collar in place using the positioning flexibility of your
equipment.
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? - horizontal beam lateral
A patient comes to radiology for a sinus series. She cannot fully extend her head and
neck for the submentovertical projection. What else can the technologist do to produce
a diagnostic submentovertical projection? - Angle the CR to place it perpendicular to
IOML.
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? - PA with no CR angulation to
OML
A patient enters the ED with a possible fracture of the proximal ramus of the mandible.
Which of the following routines would best diagnose this fracture? - PA axial mandible
projection, axiolateral projection with no skull rotation, and a 35° AP axial projection
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? - Horizontal beam lateral projection
A positron is - is a positively charged electron.
A pulse oximeter is a device that measures what in the arterial blood? - Hemoglobin
oxygen saturation
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? - Tilt
, 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? - 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? - Insufficient extension of skull
and neck
A radiograph of a parietoacanthial transoral (open-mouth Waters) projection reveals that
the mouth is open but the sphenoid sinus is superimposed over the maxilla and upper
teeth. What positioning error led to this radiographic outcome? - Insufficient extension of
the head and neck
A radiograph of an axiolateral oblique projection of the mandible reveals that the
mandibular body is greatly foreshortened. Which of the following modifications is
necessary to produce a more diagnostic image? - Increase the rotation of skull toward
the image receptor.
All of the following are examples of simple immobilization techniques EXCEPT -
wrapping a child in a sheet (mummy wrap).
An average-shaped skull with a 47° angle between the petrous pyramids and the
midsagittal plane is classified as: - Mesocephalic
An electron removes a K shell electron and an M shell electron fills the vacancy. The K
shell binding energy is 69.5 keV and the M shell binding energy is 2.8 keV. What is the
energy of the K-characteristic (new)photon produced? - 66.7 keV
As you prepare to take a PA chest radiograph on a patient who is suspected of having a
lung collapse, you note that the patient has an extremely difficult time taking in a deep
inspiration. An imaging sciences professional would - record the depth of inspiration as
an item of subjective data.
At 55 kVp, _____ of the x-rays produced are bremsstrahlung. - 100%
Changing the ___________________ results in changes to the x-axis, y-axis, and
location of the discrete line of the x-ray emission spectrum. - Target material
Compton scattering results in - a compton electron, a secondary electron and a
compton scatter photon
Compton scattering typically occurs with x-ray photons in the energy range of - 20-40
keV
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