HESI review three part one solved
A foreign body in the eye is best visualized by which projection - ANS-parietoacanthial
projection (Waters method)
A patient comes to a clinic with severe cheek pain, caused by damage sustained during
an altercation. Which facial bone is most likely affected? - ANS-Zygomatic arch
A patient comes to a radiologic technologist with a clinical history of acoustic neuroma.
Which imaging modality will provide the best assessment for this tumor? - ANS-MRI
Auditory ossicles - ANS-three small bones linked together that connect the eardrum to
the inner ear
Before attempting a submentovertex (SMV) projection of the skull on a trauma patient,
what must be ruled out? - ANS-Fracture or subluxation of the cervical spine
Circle of Wills - ANS-links the blood flow of vertebral and internal carotid arteries
unites the anterior and posterior circulations via the anterior communicating artery and
two posterior communicating arteries
For fractures of the nasal bones with medial-lateral displacement, what special
projection is used? - ANS-superoinferior axial
How can radiation exposure to the patient be reduced when obtaining images of the
skull, facial bones, and paranasal sinuses? - ANS-Use proper collimation.
Immobilize the patient.
Giving detailed instructions to the patient
How can radiation exposure to the patient be reduced when obtaining images of the
skull, facial bones, and paranasal sinuses? Select all that apply. - ANS-Use proper
collimation.
Immobilize the patient.
Giving detailed instructions to the patient
How can the radiologic technologist determine which lateral (R or L) projection of the
skull should be performed? - ANS-The side of interest should be placed closest to the
image receptor (IR).
How is the central ray (CR) positioned for a parietoacanthial projection (Waters
method)? - ANS-Perpendicular to the image receptor (IR) and exiting the acanthion
, How is the central ray (CR) positioned for acanthioparietal projection. - ANS-
Perpendicular to enter the acanthion and centered to the IR is a CR
How is the central ray (CR) positioned for PA axial projection (Caldwell method)? -
ANS-CR is angled 15 degrees caudad and exits the nasion for a PA axial projection
(Caldwell method).
How is the sagittal plane in In the PA, Waters, and AP projections, - ANS-the sagittal
plane is perpendicular to the IR.
How many bones does each orbit consist of? - ANS-seven
How many cranial and facial bones are articulated with the palatine bone? - ANS-two
cranial bones and four facial bones
How many skull bones are present in the human body? - ANS-22
How should the patient be positioned for a posteroanterior (PA) axial projection
(Caldwell method)? Select all that apply. - ANS-in prone or seated position
Elbows flexed and placed in a comfortable position
Forehead and nose against the table or upright Bucky
Midsagittal plane of the body centered to the midline of the grid
If the eyeball were to sustain a direct hit, which is the most likely bone to break or
fracture? - ANS-Floor of the orbit
In which bones are the paranasal sinuses contained? Select all that apply - ANS-frontal
maxilla
ethmoid
sphenoid
In which bones are the paranasal sinuses contained? Select all that apply. - ANS-frontal
maxilla
ethmoid
sphenoid
In which part of the ear are the cochlea, vestibule, and semicircular canals present? -
ANS-Osseous labyrinth
In which part of the orbital cavity is the eyeball located? - ANS-anterior
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