C-Spine positioning
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| name given to the C7 | vertebra prominens
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| openings in the cervical vertebrae for the transmission of the vertebral artery and vein | transverse foramen
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| Where should the center of the IR be positioned for the open mouth AP projection of the atlas and axis? | C2
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| 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
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| For which projection is the patient instructed to softly phonate ah during the exposure? | AP open mouth atlas and axis
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| 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
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| 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
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| For which projection is the patient instructed to softly phonate ah during the exposure? | AP open mouth atlas and axis
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| Which of the following methods is used to demonstrate the dens within the foramen magnum? | fuchs method
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| Where is the center of the IR positioned for the AP projection of the dens, Fuchs method? | tip of the mastoid process
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| What is the CR angulation for the AP projection of the dens, Fuchs method? | perpendicular to the IR, zero degrees
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| Where is the IR centered for an AP axial cervical spine? | C4
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| The CR angle for an AP axial cervical vertebrae | 15-20 cephalad
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| Where is the CR directed for a lateral cervical spine? | C4
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| 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
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| The SID for a lateral c spine must be a minimum of how many inches? | 60-70
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| The respiration phase for a lateral c spine is? | suspension after expiration
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| Grandy method is? | lateral C-spine
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| Where is the CR centered for a hyperflexion or hyperextension lateral c spine? | C4
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| The phase of respiration for a hyperflexion or hyperextension lateral c spine is? | suspended respiration
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| How much is the body rotated for AP axial oblique projection of the cervical intervertebral foramina? | 45 degrees
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| The swimmers lateral projection is performed to demonstrate the? | cervicalthoracic region
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| The twining method demonstrates the Cervicothoracic region in which projection? | lateral swimmers
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| What is the CR angulation for an AP axial projection of the cervical spine on a trauma patient? | 15-20 cephalad
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| Flexion and extension views of the cervical vertebrae are performed to show? | degree of moblity
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| The thyroid cartilage generally corresponds to the level of? | C4-C6
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| 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
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| Where is the CR directed for the lateral projection of the cervicothoracic region twining method? | C7-T1
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| True or False: If the patients chin was not adequately elevated, the mandibular rami superimpose the bodies of c1 and c2 | true
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| What is the CR angle for the pa axial oblique projection of the cervical intervertebral foramina? | 15-20 degrees caudad
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| Which intervertebral foramina are demonstrated on the pa axial oblique projection of the cervical spine? | foramen and pedicle closest to the IR
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| The respiration phase for an AP or pa axial oblique projection of the c spine is: | suspended respiration
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| 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
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| The recommended SID for a dorsal decubitus cross table lateral projection of the c spine on a trauma patient is: | 60-72 inches
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| What is the CR angulation for an AP axial projection of the c spine on a trauma patient? | 15-20 degrees cephalad
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| 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
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| Which of the following methods is used to demonstrate the Cervicothoracic region in the lateral projection? | twining, grandy, pawlow, twining and pawlow
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| The twining method demonstrates the cervicothoracic region in which projection? | lateral
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| The swimmers lateral projection is performed to demonstrate the: | cervicothoracic regiion
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| What is the CR angulation for the lat projection of the cervicothoracic region twining method when the shoulder can be depressed? | zero
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| Where is the CR directed for the lateral projection of the cervicothoracic region twining method? | C7-T1
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| The Pawlow method demonstrates the cervicothoracic region in which projection? | lateral
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| The CR angulation for the lateral projection of the cervicothoracic region Pawlow method is: | 3-5 degrees caudad
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| Flexion and extension views of the c spine are performed in the __ position? | lateral
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| The thyroid cartilage corresponds to level of | C4-C6
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| 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
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| Why is the chin extended for lateral projection of the c spine? | to prevent superimopsition of the C1-C2
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| If the patients chin was not adequately elevated, the mandibular rami will superimpose the bodies of? | C1 and C2
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| The AP axial oblique projection of the cervical spine include the following in what position | RPO, LPO
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| The pa axial oblique projection of the cervical spine include the following: | RAO, LAO
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| The position used to demonstrate the absence of normal movement from trauma or disease is: | lateral hyperflexion and extension
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| On the lateral c spine projection both the CR and IR are centered at the level of __ | C4
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