ARRT REGISTRY PROCEDURES Exam
Study Guide
Sthenic - answeraverage build
hyposthenic - answerslender
asthenic - answerextremely thin
hypersthenic - answerabove average or massive build
what landmark corresponds to C4-5? - answerthyroid cartilage
what landmark corresponds to the sternal notch?...
what line is used for all skull projections except for 2 and what are they? - answer✔OML
lateral and SMV
what does the AP/PA axial skull (Townes) demonstrate? - answer✔dorsum sellae within the
foramen magnum
what is seen in the PA axial Caldwell method of the skull? - answer✔petrous ridges projected in
the lower 1/3 of the orbits
what is the angle of the CR for the PA Haas method of the skull? - answer✔25-30 degrees
cephalad
what do we see in the PA skull? - answer✔petrous ridges completely filling the orbits
what bones are affected by a blowout fx? - answer✔zygomatic arch
maxilla
palantine
what projection is done to see a blowout fx? - answer✔modified waters
what is the angle of the CR for an axiolateral oblique of the mandible? - answer✔25 degrees
cephalic through ramus closest to IR
in an axiolateral oblique of the mandible, what position is the head in to demonstrate the
ramus? - answer✔true lateral
in an axiolateral oblique of the mandible, what position is the head in to demonstrate the
body? - answer✔head rotated 30 degrees toward the table
in an axiolateral oblique of the mandible, what position is the head in to demonstrate the
mentum? - answer✔head rotated 45 degrees toward the table
nasal bones will use the same technique as _______ - answer✔finger
what projection demonstrates the nasal septum? - answer✔parietoacanthial (waters)
doesn't show a fx, only shows deviation
what is the only projection of paranasal sinuses that demonstrates all 4 sinuses? -
answer✔lateral
what sinuses are shown in the PA axial caldwell of the sinuses? - answer✔frontal and ethmoid
what sinuses are shown in the waters method of sinuses? - answer✔maxillary
may also see sphenoid through open mouth
in an AP open mouth projection, what do we need to do if the teeth are projected over the
dens? - answer✔extension
in an AP open mouth projection, what do we need to do if the base of the skull is projected
over the dens? - answer✔flexion
chin needs to be tucked more
what is demonstrated in the AP obliques of the C spine? - answer✔intervertebral foramina
farthest from IR
what is demonstrated in the AP obliques of the T spine? - answer✔zygoapophyseal articulations
farthest from IR
what is demonstrated in the AP obliques of the L spine? - answer✔zygoapophyseal joints
closest to IR
why are flexion and extension images taken of the c spine? - answer✔post surgical fusion
post whiplash
what exams require a breathing technique? - answer✔Lateral t spine
swimmers
sternum
transthoracic
soft tissue neck
AP scapula
what breathing technique do we use for a lateral t spine? - answer✔2.5 - 4 seconds, low mA
what is the name of the method used for Scoli series? - answer✔Ferguson
why is PA preferred for a scoli series? - answer✔to reduce radiation exposure of radiosensitive
organs
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