C-Spine positioning


Question Answer
name given to the C7 vertebra prominens
openings in the cervical vertebrae for the transmission of the vertebral artery and vein transverse foramen
The zygapophyseal joints of the cervical spine are clearly demonstrated on which projection lateral
Where should the center of the IR be positioned for the open mouth AP projection of the atlas and axis? C2
Which line must be perpendicular to the IR for the AP open mouth atlas and axis Line drawn from the lower edge of the upper incisors to the tip of the mastoid process
For which projection is the patient instructed to softly phonate ah during the exposure? AP open mouth atlas and axis
Where is the CR directed for an open mouth AP projection of the atlas and axis? center of the IR perpendicular thru the open mouth
When the OID long, scattered radiation that would expose the film at a short OID is scattered away from the film. Because much of the scattered radiation is not being directed toward the film, a grid is not needed to absorb the scatter air gap technique
For which projection is the patient instructed to softly phonate ah during the exposure? AP open mouth atlas and axis
Which of the following methods is used to demonstrate the dens within the foramen magnum? fuchs method
Where is the center of the IR positioned for the AP projection of the dens, Fuchs method? tip of the mastoid process
What is the CR angulation for the AP projection of the dens, Fuchs method? perpendicular to the IR, zero degrees
Where is the IR centered for an AP axial cervical spine? C4
The CR angle for an AP axial cervical vertebrae 15-20 cephalad
Where is the IR centered for a lateral cervical spine? C4
Where is the CR directed for a lateral cervical spine? C4
true or false: When cervical vertebral radiographs are taken on a trauma patient in whom subluxation or fracture is suspected, it is important that the c collar is removed or adjusted to obtain a good radiograph. false
The SID for a lateral c spine must be a minimum of how many inches? 60-70
The respiration phase for a lateral c spine is? suspension after expiration
Grandy method is? lateral C-spine
Where is the CR centered for a hyperflexion or hyperextension lateral c spine? C4
The phase of respiration for a hyperflexion or hyperextension lateral c spine is? suspended respiration
How much is the body rotated for AP axial oblique projection of the cervical intervertebral foramina? 45 degrees
The swimmers lateral projection is performed to demonstrate the? cervicalthoracic region
The twining method demonstrates the Cervicothoracic region in which projection? lateral swimmers
What is the CR angulation for an AP axial projection of the cervical spine on a trauma patient? 15-20 cephalad
Flexion and extension views of the cervical vertebrae are performed to show? degree of moblity
The thyroid cartilage generally corresponds to the level of? C4-C6
true or false: If the patient’s head and upper cervical column are tilted toward or away from the film, the upper cervical column is no longer aligned parallel with the film. true
Where is the CR directed for the lateral projection of the cervicothoracic region twining method? C7-T1
True or False: If the patients chin was not adequately elevated, the mandibular rami superimpose the bodies of c1 and c2 true
What is the CR angle for the pa axial oblique projection of the cervical intervertebral foramina? 15-20 degrees caudad
Which intervertebral foramina are demonstrated on the pa axial oblique projection of the cervical spine? foramen and pedicle closest to the IR
The respiration phase for an AP or pa axial oblique projection of the c spine is: suspended respiration
Patients may arrive in the emergency room with trauma to the neck. Which projection of the c spine is performed first, and then reviewed by a physician, before proceeding with other projections? cross table lateral to check for fx
The recommended SID for a dorsal decubitus cross table lateral projection of the c spine on a trauma patient is: 60-72 inches
What is the CR angulation for an AP axial projection of the c spine on a trauma patient? 15-20 degrees cephalad
Which CR angulation would be used to demonstrate the c spine pillars and laminae for an AP axial projection on a trauma patient? 20-30 degrees caudad
Which of the following methods is used to demonstrate the Cervicothoracic region in the lateral projection? twining, grandy, pawlow, twining and pawlow
The twining method demonstrates the cervicothoracic region in which projection? lateral
The swimmers lateral projection is performed to demonstrate the: cervicothoracic regiion
What is the CR angulation for the lat projection of the cervicothoracic region twining method when the shoulder can be depressed? zero
Where is the CR directed for the lateral projection of the cervicothoracic region twining method? C7-T1
The Pawlow method demonstrates the cervicothoracic region in which projection? lateral
The CR angulation for the lateral projection of the cervicothoracic region Pawlow method is: 3-5 degrees caudad
Flexion and extension views of the c spine are performed in the __ position? lateral
The thyroid cartilage corresponds to level of C4-C6
Which position projection of c spine will best demonstrate the zygapophyseal joint spaces between c1 and c2? AP open mouth
Along with the lower edge of the upper incisors, what other bony landmark must be aligned for the AP open mouth projection? tip of mastiod
Why is the chin extended for lateral projection of the c spine? to prevent superimopsition of the C1-C2
If the patients chin was not adequately elevated, the mandibular rami will superimpose the bodies of? C1 and C2
The AP axial oblique projection of the cervical spine include the following in what position RPO, LPO
The pa axial oblique projection of the cervical spine include the following: RAO, LAO
The position used to demonstrate the absence of normal movement from trauma or disease is: lateral hyperflexion and extension
On the lateral c spine projection both the CR and IR are centered at the level of __ C4



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