LMRT 226 Skull Final CHCP Correct
100%
For a lateral facial bones projection, the chin should be adjusted so the IOML is
perpendicular to the front edge of the IR. - ANSWER true
Which positioning line is placed perpendicular to the plane of the IR with a true lateral
nasal bone projection? - ANSWER interpupillary
The modified parietoacanthial (modified Waters) projection requires more extension of
the head and neck as compared with the parietoacanthial (Waters) projection. -
ANSWER false
Where is the CR centered for a lateral projection of the cranium? - ANSWER 2 inches
superior to EAM
How much difference is there between the OML and IOML positioning lines? -
ANSWER 7-8 degrees
Where does the CR exit for a modified parietoacanthial (modified Waters) projection of
the facial bones? - ANSWER Acanthion
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 IOML increase
angulation by 7 degrees
The 15° PA axial (Caldwell) projection produces an unobstructed view of the maxilla. -
ANSWER false
Which one of the following cranial projections will best demonstrate a possible basilar
fracture? - ANSWER horizontal beam lateral
Why is the chin extended for an axiolateral oblique projection of the mandible? -
ANSWER To prevent superimposition of cervical spine
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 guardian
Which is the only movable joint in the skull? - ANSWER temporomandibular joint
100%
For a lateral facial bones projection, the chin should be adjusted so the IOML is
perpendicular to the front edge of the IR. - ANSWER true
Which positioning line is placed perpendicular to the plane of the IR with a true lateral
nasal bone projection? - ANSWER interpupillary
The modified parietoacanthial (modified Waters) projection requires more extension of
the head and neck as compared with the parietoacanthial (Waters) projection. -
ANSWER false
Where is the CR centered for a lateral projection of the cranium? - ANSWER 2 inches
superior to EAM
How much difference is there between the OML and IOML positioning lines? -
ANSWER 7-8 degrees
Where does the CR exit for a modified parietoacanthial (modified Waters) projection of
the facial bones? - ANSWER Acanthion
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 IOML increase
angulation by 7 degrees
The 15° PA axial (Caldwell) projection produces an unobstructed view of the maxilla. -
ANSWER false
Which one of the following cranial projections will best demonstrate a possible basilar
fracture? - ANSWER horizontal beam lateral
Why is the chin extended for an axiolateral oblique projection of the mandible? -
ANSWER To prevent superimposition of cervical spine
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 guardian
Which is the only movable joint in the skull? - ANSWER temporomandibular joint
