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wahlquist1981
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When taking an AP Cervical Open Mouth x-ray, what is the ideal position for the patient?
Supine; Although we comp with the patient standing
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When taking an AP Oblique x-ray of the cervical spine the body is at ____*, the tube is at ____*, and the central ray is through _____.
45,15-20, C4
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When taking an x-ray of the cervical spine in the lateral position what are the tube angulation and the SID?
Perpendicular to C4, 72"
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Where is the central ray for the AP Cervical Open Mouth projection?
Centered to the open mouth
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What is the proper tube angulation for an AP projection of the coccyx?
10* caudal
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What is the name of the most anterior portion of the thoracic vertebrae?
Body
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The brain and spinal cord make up what part of the nervous system?
Central
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How many cervical vertebrae are there?
7
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How many thoracic vertebrae are there?
12
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How many lumbar vertebrae are there?
5
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The natural curve of the lumbar spine is classified as what type? (Convex or Concave?)
Convex anteriorly, concave posteriorly
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Which vertebrae have demifacets for articulation with the ribs?
Thoracic
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What is another name for C1?
Atlas
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What position/projection is necessary to demonstrate the intervertebral foramina of the cervical spine?
45* Oblique
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How much should the body be rotated for the oblique position of the sacroiliac joints?
25-30*
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Long exposure time (Shallow breathing technique) is useful in what projection?
Lateral thoracic spine
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What are the functions of the vertebral column?
Encloses and protects the spinal cord; supports the trunk and skull superiorly; provides for attachment of ribs and muscles.
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How many bones make up the vertebral column?
33
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Which vertebrae are true and how many are there?
The upper 24 vertebrae are true. The pelvic region is false.
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Where does the vertebral column articulate with the hips?
SI Joints
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At what angle do the intervertebral foramina lie on the cervical vertebrae?
45* anteriorly and 15* inferiorly to MSP
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The Z-Joints of the Thoracic Spine form what angle with the MSP?
70-75*
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How much should you rotate the patient from MCP when you are shooting an AP Oblique Projection of the thoracic vertebrae?
15-20*
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The Z-Joints of the Lumbar Spine form what angle with the MSP?
30-60*
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Dorsal Decubitus Lateral is also known as what projection?
Cross Table C-Spine
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When using the anode heel effect you should place the cathode side at which end of the body?
Feet
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What should you place behind the patient when shooting a lateral projection?
Lead rubber
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On the lateral L-spine how should you position the knees?
Flexed and superimposed over each other
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What classification of bones are the vertebrae?
Irregular
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How many sacral bones occupy the vertebral column?
5
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How many coccygeal bones occupy the vertebral column?
3-5
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The cervical and lumbar vertebrae are ____ anteriorly and are called ____ curves.
Convex; lordotic
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The thoracic and pelvic curves are _____ anteriorly and are called _____ curves.
Concave; kyphotic
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Which spinal curves are considered primary curves?
Thoracic and Pelvic
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At what age does the cervical spine begin to develop? Lumbar spine?
3-4 months when child is able to hold the head up; 1-1.5 when child begins to walk
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The lumbar and pelvic curves are more pronounced in ______ (men or women)?
Women
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Any abnormal increase in the thoracic curvature is called what?
Kyphosis
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Any abnormal increase in the lumbar curvature is called what?
Lordosis
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Any abnormal increase in the lateral curvature of the spine is called what?
Scoliosis
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What are the 2 main parts of the typical vertebrae?
Vertebral body and vertebral arch
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The vertebral arch and body enclose a space called the _____?
Vertebral foramina
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The vertebral bodies are separated by what?
Intervertebral disks
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What makes up 1/4 of the length of the vertebral column?
Intervertebral disks
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Each disk has a central mass called the ____, which is surrounded by the ____.
Nucleus pulposis; annulus fibrosis
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This condition occurs when the nucleus ruptures or protrudes into the vertebral canal.
Herniated nucleus pulposis or more commonly called a slipped disk
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______ allow for transmission of spinal nerves and blood vessels.
intervertebral foramina
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The transverse processes are made up of ___ and ____.
Lamina and pedicles
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These join at the midline to form the spinous processes.
Laminae
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A congenital defect of the vertebral column in which the laminae fail to unite posteriorly.
Spina bifida
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What 2 parts of the vertebrae form the Z-Joint?
Superior and Inferior articulation processes
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What makes C1 (atlas) unique?
Contains lateral masses but has no body.
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What is the strong conical process that arises from C2?
The Odontoid process (dens)
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C7 is also called _____, what makes it unique?
Vertebral prominens; the spinous process is easy palpable as it is almost horizontal
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Name 2 anatomical features that make the cervical spine unique.
They have transverse foramina and they have a bifid spinous process
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These are for the transmission of the vertebral artery and veins.
Transverse foramina
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In order to see the z- joints on the cervical vertebrae what position/projection is necessary?
Lateral (see table below)
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How many thoracic vertebrae articulate with the tubercle of the rib?
10
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How many thoracic vertebrae articulate with the head of the rib?
12
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How much should you rotate the patient from the lateral position to demonstrate the z- joints of the thoracic vertebrae?
15-20*
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Which vertebrae have mamillary processes?
Lumbar
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The part of the lamina between the superior and inferior processes is called the _____ on the lumbar vertebra.
Pars interarticularis
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At what angle do the z-joints of the lumbar spine lie?
30-60* posteriorly from MSP
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This condition is characterized by the anterior displacement of one vertebra over another caused by a bony defect in the pars interarticularis. This condition almost exclusively involves the lumbar spine.
Spondylolisthesis
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What projection would you use to demonstrate Spondylolisthesis?
Oblique b/c that is where the "neck" of the "Scottie dog" is seen.
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Where is the base located on the sacrum/coccyx? The apex?
Superiorly; inferiorly - the base of the coccyx articulates w/ the apex of the sacrum
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Whose sacrum (males or female?) is more acutely curved?
Female
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At the superior ridge of the sacrum there is a prominent ridge, what is it called?
Sacral promontory
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On each side of the sacral base is a large, wing like lateral mass called the ___?
Ala
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The pelvis and the sacrum articulate at the ____, more specifically the _____ surfaces.
SI Joints; auricular surface
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What type of joint is the atlanto-occipital joint?
Ellipsoidal
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What type of joint is the atlantoaxial joint?
Gliding at the lateral aspect; pivot at the medial aspect (dens)
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This is an avulsion fracture of the spinous process in the lower cervical and upper thoracic region.
Clay Shoveler's
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This is a fracture of the anterior arch of C2 due to hyperextension
Hangman's Fracture
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What is a Jefferson fracture?
Comminuted fracture of the ring of C1
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When would you use the Fuch's method?
When the dens has not been clearly demonstrated in the open-mouth position.
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What is the correct patient position for the Fuch's method?
Supine with chin extended until tip of the chin and tip of mastoid process are vertical.
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Where do you center the IR for the Fuch's method?
Center to level of mastoid tips
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What is the respiration phase for the Fuch's method?
Suspended.
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Where is the central ray directed for the Fuch's method?
Perpendicular to MSP just distal to the tip of the chin
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Where should you view the dens?
Within the foramen magnum
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What is the recommended SID for the open-mouth projection?
30"
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What is the recommended patient position for the open-mouth projection?
Supine
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What anatomical landmarks should you use when positioning for the open-mouth projection?
Upper incisors and the mastoid tips
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What is the respiration phase for the open-mouth projection?
Phonate "ah"
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Where is the IR centered for the open-mouth projection?
C2
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Why should you have the patient say "ah"?
To depress the tongue out of the way of the dens and will prevent movement of the mandible
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Where is the central ray directed for the open-mouth projection?
Entering midpoint of open mouth
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Which 2 patient positions could you use on an AP Axial projection of the c-spine?
Upright or supine
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Why do you have the patient extend the chin in an AP Axial projection of the c-spine?
To prevent superimposition of the mandible and midcervical vertebrae
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What is the respiration phase for the AP Axial projection of the c-spine?
Suspend
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Where/how is the central ray directed for the AP Axial projection of the c-spine?
15-20* cephalad entering at the level of C4
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How many vertebrae should you see on the AP Axial projection of the c-spine?
You should see the lower 5 cervical vertebrae and the first 2 thoracic (C3- T2)
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The lateral projection of the cervical spine is also called what?
The Grandy method
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What is the recommended SID for the Grandy method? Why?
60-72" because of the increase OID created by the shoulder, the larger SID demonstrates C7 better.
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Where should the top of the IR be for the Grandy method?
1" above EAM (about the top of the ear)
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How should you position the patient's shoulders for the Grandy method?
If the patient has round shoulders rotate them anteriorly otherwise rotate them posteriorly, also make sure they are on the same plane and depress them as much as possible.
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What is the respiration phase for the Grandy method? Why?
Suspend at the end of full expiration, this will help depress the shoulders
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Where is the central ray directed for the lateral projection of the cervical spine?
Perp to C4
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What should be seen on the lateral projection of the cervical spine?
C1- 1/3 of T1
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What projection should you use if C7-T1 is not clearly seen?
Swimmers
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What is the recommended SID for the AP Axial Oblique projection of the c-spine?
60-72"
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What much should you rotate the patient for the AP Axial Oblique projection?
45* and the head should be lateral
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The AP Axial Oblique projection should have a central ray angle of how many degrees? Where is it directed?
15-20* cephalad entering C4
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What is being demonstrated on the oblique projection of the cervical spine?
Intervertebral foramina
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What is the respiration phase for the oblique projection of the c-spine?
Suspended
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True or False: You should be able to clearly view the intervertebral foramina on C1 and C2 on the oblique projection?
False
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What is another name for the AP projection of the c-spine?
Ottonello
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What technique do you use on the AP projection to blur and sometimes obliterate the mandibluar shadow?
An even chewing method during the exposure.
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The swimmers technique has 2 methods, what are they?
Recumbent (Powlow) and Upright (Twining)
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If the patient cannot depress the shoulder how should you angle to tube for the swimmers technique?
3-5* caudal
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Monda recommended angling the tube _____ on the Swimmers position to better demonstrate the disk spaces.
5-15* cephalad
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What is the respiration phase for the Swimmers Technique?
Suspended; or if the patient can be immobilized you can use slow shallow breathing.
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All of the joints in the vertebrae are synovial, freely moveable except which one?
Intervertebral Joints
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The intervertebral joint is what kind of joint?
Cartilaginous, Symphysis Slightly Moveable
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L1-L3 have an average angle range of what?
0-30*
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L3-L4 have an average angle range of what?
15-45*
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L4-S1 have an average angle range of what?
45-60*
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On which projections can you use a compensating filter on?
AP T-Spine, Swimmers
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Which 2 positions are acceptable for the AP T-Spine?
Upright and Supine (Supine is recommended)
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How should the legs be positioned for the AP T-Spine?
Hip and legs flexed
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Where should the superior border of the IR be placed for the AP T-spine?
1 1/2-2" above the shoulders (The same is true for the lateral t-spine)
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What is the respiration phase for the AP and lateral T-spine?
Shallow breathing or suspend on expiration
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What 2 bony landmarks can you use to help center for the AP T-Spine?
Xiphoid Process and Jugular Notch
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Approximately where should the CR enter for the AP T-Spine?
T7
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True or False: You can place the patient in a lateral recumbent position or an upright position for the lateral T-spine projection?
True
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Why do you place the patient in a left lateral position rather than a right (for lat t-spine)?
To reduce magnification of the heart
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What should you place under the patients head to ensure that the long axis of the spine is horizontal (for lat t-spine)?
A firm pillow
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Which half of the thorax should be placed at the midline of the grid (for lat t-spine)?
Posterior half
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How should you position the patients' knees (for lat t-spine)?
Flexed and superimposed
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How are the patients arms positioned (for lat t-spine)?
Positioned at a right angle to the body
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Although using a sponge to put the long axis of the t-spine horizontal is the preferred method, what else could you do if the long axis of the t-spine isn't horizontal for lateral t-spine?
You can angle to tube 10-15* cephalad. (10* for women 15* for men b/c of the broad shoulders)
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True or False: The c-spine "Swimmers lateral" is the same projection as the t-spine "swimmers lateral"?
True
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True or False: On the lateral t-spine T1-T3 will not be well visualized?
True
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Which joints are demonstrated on the oblique projection of the t-spine?
Z-joints
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On an AP oblique t-spine, which Z Joints CLOSEST OR FARTHEST are demonstrated?
Farthest
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How much do you rotate the patient (from the AP position) for an oblique t-spine projection?
70*
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With reference to the patient where you place the top of the light on the oblique proj. of the t-spine?
1 1/2 - 2" above shoulder (center at T7)
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What is the respiration phase for the oblique t-spine?
Suspend on expiration
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If possible what should be cleared from the intestinal tract for the AP Lumbar projection?
Gas and fecal matter
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What effect does flexing the knees have on the curve of the lumbar spine (for the AP lumbar proj)?
It reduces lordosis
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What is the recommended SID for all lumbar projections?
48"
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Where should you place the patient's arms for the AP Lumbar projection?
Flex elbow and place hands on the chest
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Why should you place a sponge under the patient's lower back?
To prevent rotation
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When using a 14x17" film where should you center the IR? 11x14"? (This is for AP and Lateral proj)
L4 for 14x17; L3 for 11x14"
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What is the respiration phase for AP l-spine?
Suspend on expiration
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Where do you direct the CR for a lumbosacral projection? Lumbar? (This is for AP and Lateral proj)
L4 for l.s. and L3 for lumbar
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Why do some Doctors request that you leave the collimation wide open on an AP l-spine?
Trauma, visualization of the liver, kidney, spleen, psoas muscles margins, and air or gas patterns
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What is the respiration phase for the AP and lateral L-spine?
Suspend on expiration
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If the spine cannot be moved into a horizontal position by using a ___, then you should place an angulation of __ to __ degrees.
Sponge; 5-8* caudal
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Which vertebrae should be visualized on this image? (lateral l-spine)
Lower thoracic to sacrum (or to coccyx when using the bigger film)
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Is the L5 intervertebral foramina visualized on the lateral projection of the L-spine?
No because of its obliquity you see them better on the oblique projection.
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Which AEC chambers should you use for the lateral l-spine?
Center pod
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What position is the patient in for the L5-S1 lateral projection?
Lateral recumbent
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What is another name for the L5-S1 lateral projection?
The spot
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If possible, how should the legs be positioned for the spot projection?
Extended the legs and superimpose the knees
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Where should you place a sponge for the spot projection to try and get the spine into a horizontal position?
Under the lower thorax
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What is the respiration phase for the spot projection?
Suspend
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Where is the central ray angled for the spot projection?
2" posterior to ASIS and 1 1/2" inferior to crest
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If using a sponge does not help with getting the spine horizontal, what other technique could be used?
Angle the tube 5-8* caudal
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Francis identified another method to demonstrate the L5-S1 joint space, what is it?
Draw an imaginary line between the two crests (iteriliac plane) and adjust the central ray angulation to be parallel with it.
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The AP Oblique projections should demonstrate which joints?
Z joints
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With the patient in the RAO position, which Z Joints are being demonstrated on an oblique l-spine?
Left side (farthest)
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True or false: the patient may be in either an upright or supine position for the AP oblique l-spine?
True
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How much should you rotate the patient on an oblique l-spine?
45*
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On which plane does the spine lie for the oblique projection of the l-spine?
2" medial to ASIS
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How much should you rotate the patient to demonstrate the Z joint of L5-S1 in an oblique projection (not lateral!)?
As much as 60*
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What is the respiration phase for the AP Oblique projection of the l-spine?
Suspend on expiration
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Where is the central ray directed for the oblique l-spine?
2" medial to ASIS and 1 1/2" above crest
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Where should you direct the central ray for the oblique l-spine of the 5th Z joint?
2" medial to ASIS and up to a point midway between ASIS and Crest
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What does the ear of the "Scottie Dog" represent?
Superior articular process
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What does the nose of the "Scottie Dog" represent?
Transverse process
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What does the eye of the "Scottie Dog" represent?
pedicle
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What does the collar of the "Scottie Dog" represent?
Pars interarticularis
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What does the body of the "Scottie Dog" represent?
lamina
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What does the leg of the "Scottie Dog" represent?
Inferior articular process
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What is another name for the AP or PA axial projection of the lumbosacral junction and SI joints?
Ferguson method
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How should the lower limbs be positioned for the Ferguson method?
Extended or you can abduct the thighs
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What is the respiration for the Ferguson method?
Suspend
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Ferguson originally recommended a ____ degree angle but it has been modified and now we use __-__ degrees ______ for the AP projection.
45*; 30* for males-35* for women cephalad
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Where do you direct the central ray?
1 1/2" above pubic symphysis
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If the patient is in the prone position how would you direct the central ray?
35* caudal entering the spinous process of L4
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For the AP Oblique projection of the SI joints which side, CLOSEST OR FARTHEST, is being demonstrated?
Farthest
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How much do you rotate the patient for the AP Oblique projection of the SI joints?
25-30*
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Align the body so that a sagittal plane passing ___" medial to the ASIS of the ______ side of the patient is centered to the midline of the grid. (AP Oblique projection of the SI joints)
1"; elevated
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Where should you center the IR for AP Oblique projection of the SI joints?
At level of ASIS
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What is the respiration phase for the AP Oblique projection of the SI joints?
Suspend
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Where should you direct the central ray?
Perpendicular entering 1" medial to elevated ASIS
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If you were to use an axial angle for an AP Oblique of the SI joints how much and in which direction would you use? Where would you center the central ray?
20-25* cephalad entering 1" medial and 1 1/2" distal to ASIS
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For the AP or PA axial projections of the sacrum and coccyx where should you place the hands?
Flex elbows and place the hands on the chest.
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Can women be shielded for the axial projections of the sacrum/coccyx?
No
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What is the respiration phase for the axial projections of the sacrum/coccyx?
Suspended
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When the patient is in the supine position where do you direct the central ray for the axial projection of the sacrum?
15* cephalad entering 2" superior to pubic symphysis
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With the patient in the prone position where do you direct the central ray for the axial projection of the sacrum?
15* caudal entering at the clearly visible sacral curve
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When the patient is in the supine position where do you direct the central ray for the axial projection of the coccyx?
10* caudal entering 2" superior to pubic symphysis
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With the patient in the prone position where do you direct the central ray for the axial projection of the coccyx?
10* cephalad entering the coccyx
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Why do you use an angle for the sacrum and coccyx?
To purposely elongate them.
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Which side should you have the patient laying on for the lateral sacrum/coccyx?
The indicated side (affected side?)
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How are the legs positioned for the lateral sacrum/coccyx?
Flex hips and superimpose the knees
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What is the respiration phase for lateral sacrum/coccyx?
Suspend
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Where is the central ray directed for the lateral sacrum?
Perpendicular 3 1/2" posterior to ASIS
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Where is the central ray directed for the lateral coccyx?
Perpendicular 3 1/2" posterior and 2" inferior to ASIS
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What scale of contrast should be seen with all sacrum/coccyx views?
Short scale
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The PA projection of the thoracolumbar region (which is a scoliosis projection) is also called what?
Ferguson
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What is the bony thorax formed by?
12 ribs, 12 thoracic vertebrae, and the sternum
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What is the purpose of the bony thorax?
The enclose and protect the heart and lungs
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Which end, top or bottom, of the thorax is narrower?
Top
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The sternum is also called the _____?
Breastbone
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What type of bone is the sternum?
Flat
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How long is the sternum?
6 inches
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How many parts of the sternum are there? Name them?
3; Manubrium, body, xiphoid process
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What does the sternum support at the superior manubrial angles?
Clavicles
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How many ribs attach directly to the sternum?
7
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What is the widest portion of the sternum?
Manubrium
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What is the depression on the superior border of the Manubrium called?
Jugular notch
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What is the longest part of the sternum? How long is it?
The body, it is 4 inches long
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The Manubrium joins the sternal body at what articulation?
Sternal angle
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The sternal angle lies at what vertebral level?
T4-T5 interspace
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This process is cartilaginous in the early stages of life but ossifies later in life. It is also the smallest portion of the sternum.
Xiphoid process
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This portion of the sternum deviates slightly from the midline of the body.
Xiphoid process
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At what level does the xiphoid process lie?
T10 (remember that X is the roman numeral for 10)
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The xiphoid process is a useful landmark in locating what organs?
Superior border of the liver and the inferior border of the heart.
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How many ribs are there in a normal body?
12
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True or False:: The ribs are numbered according to what vertebrae they are attached to.
True
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What type of bone are the ribs?
Flat
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Ribs attach to the sternum by a piece of _______ cartilage.
Hyaline
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Which ribs attach directly to the sternum?
1-7
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How do ribs 8-10 attach anteriorly?
Through the costal cartilage of the 7th rib
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What are the first seven ribs called?
True ribs
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Which ribs are false?
8-12
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Which ribs are floating?
11-12
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Why are the last 2 ribs considered floating?
Because they do not articulate anteriorly
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The ribs are situation on an oblique plane so that their anterior ends sit ____ inches below the level of their vertebral ends.
3-5"
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What are the spaces b/w ribs called?
Intercostal space
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Where do cervical ribs attach?
C7
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Lumbar ribs are often confused as what?
Fractured transverse process of the L1 vertebrae
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True or False:: The first rib is the shortest and narrowest.
False; the first rib is the shortest and widest
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Which rib would be the longest?
7th
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Which rib would be the narrowest?
12th
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A typical rib consists of what?
Head, neck, tubercle, and body
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Ribs have facets on their heads for articulation with the ________.
Vertebral body.
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What is the articulation between the vertebral body and the head of the rib called?
Costovertebral joint
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The tubercle of the rib has a facet for articulation with the _________.
Transverse process
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What is the articulation between the tubercle of the rib and the transverse process of the rib called?
Costotransverse joints
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Which vertebrae do not have a tubercular facets or neck?
11 and 12
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Each rib has a costal groove located on the _____ _____ border. It contains _____, ____, and _____.
Inferior, internal border. It contains arteries, veins, and nerves.
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How many joints are there in the bony thorax?
8
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Which joints are the only point of articulation between the upper limbs and the trunk?
SC Joints
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The sternocostal and costochondral joints are classifies as what?
Cartilaginous, synchondroses immovable joints.
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Which ribs only articulate with 1 vertebral body?
1, 10, 11, 12
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On deep inspiration the anterior ends of the ribs are carried __________, while the necks are rotated _____.
Anterior ends are carried anteriorly, superiorly, and laterally. The necks are rotated inferiorly.
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On deep expiration the anterior ends of the ribs are carried __________, while the necks are rotated _____.
Anterior ends are carried inferiorly, posteriorly, and medially. The necks are rotated superiorly.
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In which body habitus does the diaphragm sit at a higher level?
Hypersthenic
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For sthenic patients the diaphragm sits at what level?
Posteriorly at 6th or 7th costal cartilage to the level of 9th or 10th thoracic spine when in upright pos.
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Which side of the diaphragm sits at a lower level?
Left
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The diaphragm reaches its highest level when the patient is in what position?
Supine-( lowest when they are upright)
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Rib injuries are painful, even minor ones; therefore you should exam the patient in which position?
The position in which they come in.
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Why is it important to have women with large breasts tape them back for the lateral sternum?
b/c the breast tissue will interfere with the inferior portion of the sternum (xiphoid process)
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When doing the PA oblique projection of the sternum which patient position should you use and why?
RAO- to use the heart shadow for contrast
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What is the recommended SID for the RAO sternum?
30"- to blur posterior ribs
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What is the average rotation of the patient in the RAO position?
15-20*
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What should be centered to the grid for the RAO sternum?
The sternum
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Where should the top of the IR be placed for the RAO sternum?
1 1/2" above jugular notch
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What is the respiration phase for the RAO sternum?
Slow shallow breathing or suspend on expiration
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In a trauma situation the patient is brought in on a back board, and the doctor orders an oblique sternum. Which patient position would be suitable in this scenario?
LPO or AP and angle the tube medially
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Where is the CR directed for the RAO sternum?
Entering the elevated side @ T7 approx 1" lateral to midsagittal plane
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What is the SID for the lateral sternum?
72"
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True or False:: The patient may be sitting or standing for the lateral sternum?
true
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Describe how you should position the patient's arms for the lateral sternum?
Have the patient lock their hands behind their back; or above the head for recumbent positions
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Where should the top of the IR be placed for the lateral sternum?
1 1/2" above jugular notch
-
For a lateral projection of just the SC joints where should you center the IR?
At the level of jugular notch (use an 8x10 portrait)
-
What is the respiration phase for the lateral sternum?
Suspend on deep inspiration
-
Where should the CR enter the patient for the lateral sternum?
The lateral border of the sternum
-
True or False:: The SC joints should be superimposed on the lateral sternum projection
True
-
What is the difference between the upright and recumbent lateral sternum?
You should have the patient put their hands above their head instead of behind their back for the recumbent position.
-
Can you use a cross table projection to obtain a lateral sternum?
Yes
-
What is the recommended patient position for the PA projection of the SC joints?
Prone
-
Where should you center the IR for the PA projection of the SC joints?
At the level of the spinous processes of T3
-
How should you place the arms for this projection for the PA proj of SC joints?
At the patients sides
-
For a bilateral projection of the SC joints how should you position the patients head?
Rest the head on the chin
-
For a unilateral proj. of the SC joints how should you position the patients head?
Turn the head to face the affected side and rest the cheek on the table.
-
What is the benefit of turning the head towards the affected side?
Turning the head toward the affected side turns the spine slightly away from the side being examined thus allowing better visualization.
-
What is the respiration phase for the SC joints?
Suspend on expiration
-
Where is the CR for the SC joints?
Midsag @ T3
-
What should be demonstrated on the SC joints?
SC joints and medial portion of the clavicles
-
What patient position should you use for the PA oblique projection of the SC joints?
RAO and LAO
-
The PA oblique projection of the SC joints is also called what?
Body rotation
-
What size IR should you use for all sternum projections?
8x10
-
Which side should be closest to the IR for the oblique proj of the SC joints?
Affected side
-
How much should you rotate the patient for the oblique SC joints?
10-15*
-
True or false:: The shoulders should be on the same plane for the oblique proj?
True
-
What is the respiration phase for the oblique proj of SC joints?
Suspend on expiration.
-
Where is the CR directed for the oblique proj of the SC joints?
Perp to the SC joint closest to the IR. CR enters T2-T3 & 1-2" lateral from MSP.
-
If the CR enters the right side, which SC joint is being demonstrated?
Left; and vice versa
-
Instead of using the body rotation method how else could you get an oblique projection of the SC joints?
Place patient in prone position and angle tube 15* toward MSP
-
What size IR should you use for most projections of the ribs?
14x17
-
True or false:: patients can be upright or recumbent for projections of the ribs.
True
-
If the patient is complaining of pain on anterior ribs which patient position should you use? Posterior ribs?
PA; AP
-
The axillary portion of the ribs is best demonstrated on which projection?
Obliques
-
Why would you need to use a lateral projection of the ribs?
To demonstrate air/fluid levels
-
Which positions would the ribs be free from superimposition of the heart?
LAO or RPA
-
What scale of contrast would you want for the ribs?
Short scale
-
What IR orientation should be used for the upper ribs?
Portrait
-
What IR orientation should be used for the lower ribs?
Transverse
-
Where should the top of the light be placed for the upper ribs?
1 1/2" above the shoulders
-
When taking unilateral projections of the ribs what size IR should you use?
11x14 or 30x35 cm
-
What is the respiration phase for the upper ribs?
Suspend on inspiration
-
Where is the CR directed for the upper ribs?
Enters @ T7
-
What is a useful technique for demonstrating 7-9 ribs?
Angle tube 10-15* caudal
-
Which projection would best demonstrate the anterior ribs above the diaphragm?
PA(pg 489 the posterior ribs will be seen but the anterior ribs are seen in better detail b/c they are closer to the IR)
-
The AP proj of the ribs will better demonstrate which ribs?
Posterior ribs
-
When the patients position permits how should you position the patient for images of ribs above the diaphragm? Below the diaphragm? (this is true for both PA/AP proj and obliques)
Upright; recumbent
-
What is the respiration phase for the lower ribs?
Suspend on expiration
-
Where should the lower edge of the IR be placed for images of the lower ribs?
At crest
-
How much do you rotate the patient for the axillary proj of the ribs?
45*
-
True or false: It doesn't matter where the patient's arms are positioned for proj of the ribs?
False; they need to be out of the way
-
The digestive system consists of the ____ and certain _____?
Alimentary tract and certain accessory organs.
-
How many and what are the accessory organs?
The teeth, salivary glands, and the liver and pancreas.
-
What is the largest gland in the body?
The liver.
-
What divides the liver into right and left lobes?
The falciform ligament
-
Two minor lobes are located on the _____ side of the right lobe, and what are they called?
Medial side, which are called the caudate and quadrate lobe.
-
What is the hylum of the liver called, and where is it located?
The porta hepatis is located transversely between the two minor lobes.
-
The _____ and the _____, which convey blood to the liver, enter the porta hepatis and branch out through the liver substance.
The portal vein and the hepatic artery.
-
The portal vein ends in the _____, and the hepatic artery ends in the _____ that communicate with _____.
Sinusoids, capillaries, that communicate with sinusoids.
-
The liver also receives blood from the _____.
The portal system.
-
The portal system consists of veins arising from _____.
The walls of the stomach, the greater part of the gi tract, the gallbladder, pancreas, and spleen.
-
What carries blood from the liver to the inferior vena cava?
The hepatic veins through the liver sinusoids.
-
How much bile does the liver create each day?
1-3 pints.
-
What is bile responsible for?
The digestion of lipids. (fats)
-
The two hepatic ducts emerge from the _____.
Porta hepatis.
-
Hepatic and cystic ducts are approximately how long?
1 1/2"
-
The hepatopancreatic ampulla opens on an elevation known as the _____.
The major duodenal papilla.
-
The gallbladder functions to concentrate the bile by absorbing the _____.
The water content.
-
The muscle contraction of the gallbladder is controlled by _____.
Cholecystokinin.
-
The broad lower aspect of the gallbladder is termed the _____.
The fundus.
-
The gallbladder sits in a depression on the posterior aspect of the liver called the _____.
The gallbladder fossa.
-
What body habitus would the gallbladder be low and near the spine?
Asthenic
-
What are the four parts of the pancreas?
The head, neck, body, and the tail.
-
Which end is proximal to the hepatopancreatic duct?
The head of the pancreas
-
What vertebral level does the head of the pancreas lie?
L2 or L3
-
The pancreas is both a _____ and _____ type of gland.
Exocrine gland and endocrine gland.
-
What is produced by the exocrine portion?
Pancreatic juices.
-
What is produced by the endocrine function?
Insulin and glucagon.
-
The endocrine portion of the gland consists of _____ cells.
Islet cells, otherwise known as islets of langerhans.
-
The islet cells releases its glucagon and insulin secretions through _____ and not through the _____.
Capillaries, not through the pancreatic duct.
-
What body system is the spleen part of?
The lymphatic system.
-
AAA stands for what?
Abdominal aortic aneurysm.
-
ERCP stands for what?
Endoscopic retrograde cholangiopancreatography.
-
NPO means what?
Nothing by mouth, or nil per os
-
PTC stands for what?
Percutaneous transhepatic cholangiography
-
RUQ stands for what?
Right upper quadrant
-
Why would you perform a left lateral decubitus instead of a right lateral decub? (abdominal)
The stomach lies on the left side, and would obscure any peritoneal free air.
-
Where does the abdominal cavity extend from?
The diaphragm to the superior aspect of the bony pelvis
-
What organs does the abdominal cavity contain?
Stomach, small and large intestine, liver, gallbladder, spleen, pancreas and kidneys
-
What organs does the pelvic cavity contain?
Rectum, sigmoid of the large intestine, urinary bladder, and the reproductive organs.
-
The abdominopelvic cavity is enclosed in a double-walled seromembranous sac called what?
Peritoneum
-
What is the outer portion of this sac called?
Parietal peritoneum
-
What is the inner portion of the sac called?
Visceral peritoneum
-
The peritoneum forms folds called what?
Mesentery and omenta
-
What is the space called between the two layers of the peritoneum?
Peritoneal cavity
-
What is the retroperitoneum?
The cavity behind the peritoneum
-
What is the largest gland in the body?
Liver
-
The liver is divided into two lobes at what?
Falciform ligament
-
What portions convey blood to the liver?
The portal vein and the hepatic artery
-
What does the liver produce?
Bile
-
What does the biliary system of the liver consist of?
The bile ducts and gallbladder
-
What do the two main hepatic ducts emerge to form?
Common hepatic duct
-
What forms the common bile duct?
Common hepatic duct and cystic duct
-
What do the common bile duct and pancreatic duct enter into?
Hepatopancreatic ampulla or ampulla of vater
-
What is the hepatopancreatic ampulla controlled by?
Sphincter of the hepatopancreatic ampulla or sphincter of oddi
-
The muscle contraction of the gallbladder is activated by what hormone?
Cholecystokinin
-
Where is the gallbladder located?
Lodged in a fossa on the inferior surface of the right lobe of liver
-
What are the parts of the pancreas?
Head, neck, body, and tail
-
What do the exocrine cells of the pancreas produce?
Pancreatic juice
-
What does the endocrine portion of gland consist of?
Islet cells
-
What do the islet cells produce?
Insulin and glucagon
-
What is the function of the spleen?
Produce lymphocytes and store and remove dead or dying RBC
-
Where is the spleen located?
Left upper quadrant, below diaphragm and behind the stomach
-
The cystic duct enables bile from the liver to be stored where?
Gallbladder
-
What organ lies in the duodenal loop?
Pancreas
-
What is the name of the main bile duct that leads directly from the liver?
Hepatic ducts
-
What is the name of the duct that transports bile from the gallbladder?
Cystic duct
-
The digestive system consists of what two parts?
The accessory glands and the alimentary canal.
-
What are the four accessory glands?
Salivary glands, liver, gallbladder, and pancreas.
-
These glands secrete digestive enzymes where?
The alimentary canal.
-
The alimentary canal extends from where to where?
The mouth to the anus.
-
The esophagus is approximately how long and how wide?
10 inches long, 3/4 inches in diameter.
-
The esophagus and the rest of the alimentary canal has how many layers?
Four.
-
What are the layers, from the outside in?
Fibrous (serous) layer, muscular layer, submucosal layer, mucosal layer.
-
The esophagus lies in which body plane?
The midsagittal plane.
-
The esophagus originates where?
C6
-
The esophagus is posterior to the?
Trachea and heart
-
The esophagus passes inferiorly through the diaphragm at?
T10
-
Inferiorly the esophagus curves sharply in which direction?
Left.
-
The esophagus joins the stomach at what junction, and what level is it at?
Esophogastric junction at T11 or the siphons tip.
-
The expanded portion of the terminal esophagus is termed the what?
Cardiac antrum.
-
The stomach has how many parts?
Four
-
What are the 4 parts of the stomach?
Cardia, fundus, body, pyloric portion.
-
What part of the stomach is termed the gas bubble when the pt is upright?
The fundus
-
What part of the stomach descends from the fundus, starting at the cardiac antrum?
The body
-
The gastric folds of the stomach are termed what?
Rugae.
-
When the stomach is full, the rugae are?
Smooth.
-
The body of the stomach ends at a vertical plane passing through the what?
Angular notch
-
Distal to the plane of the angular notch is what portion of the stomach?
The pyloric portion.
-
Directly to the right of the angular notch where the bolus passes is the what?
Pyloric canal and pyloric sphincter.
-
The stomach has what two surfaces?
Anterior and posterior surfaces.
-
The right border of the stomach is called what?
The lesser curvature.
-
The left border is called what?
The greater curvature.
-
The greater curvature starts at what part of the stomach?
The cardiac notch.
-
The greater curvature is how many times longer than the lesser curvature?
4 to 5 times longer.
-
The entrance and exit to the stomach are controlled by what?
A sphincter.
-
The connection between the stomach and the small intestine is termed what?
The pyloric orifice.
-
What muscle controls the pyloric orifice?
The pyloric sphincter.
-
The stomach is horizontal and high in what body habitus?
Hypersthenic.
-
The stomach is vertical and low in what body habitus?
Asthenic
-
sthenic and hyposthenic habitus' accounts for what percentage of the population?
85%
-
The small intestine extends from the _____ to the _____.
The pyloric sphincter to the ileocecal valve.
-
What is the average length of the adult small intestine?
22 feet.
-
The proximal diameter of the small intestine is _____. The distal diameter is _____.
1 1/2"; 1"
-
The wall of the small intestine contains _____ layers?
4
-
The mucosa of the small intestine contains a series of projections called _____?
Villi
-
The small intestine is divided into what three portions?
The duodenum, the jejunum, and the ileum.
-
The duodenum is _____ to _____ inches in length?
8 to 10
-
What is the widest portion of the small intestine?
Duodenum
-
How many regions of the duodenum are there?
4
-
What is the name of the first duodenal region?
Duodenal bulb
-
In what region in the duodenum is the hepatopancreatic ampulla?
The second
-
The common bile duct and the pancreatic duct unite to form the _____.
Hepatopancreatic ampulla.
-
The fourth region of the duodenum joins the jejunum at the _____.
Duodenaljejunal flexure
-
The upper two fifths of the small bowel is called the _____.
Jejunum
-
The lower three fifths of the small bowel is called the _____.
Ileum
-
The most fixed part of the small intestine is the _____.
The duodenum
-
The jejunum and the ileum are gathered into freely movable loops called _____.
Gyri
-
The small bowel is attached to the posterior wall of the abdomen by the _____.
Mesentery
-
The large intestine begins in what abdominal region?
Inguinal
-
The large intestine has how many main parts?
4
-
The 4 main parts of the large intestine are the _____, _____, _____, and _____.
Cecum, colon, rectum, anal canal.
-
The large intestine is _____ long.
5 feet
-
The external band of muscle on the large intestine is the _____.
Taeniae Coli
-
How many bands of taeniae coli are there?
One anteriorly and two posteriorly.
-
Taenia Coli form a series of pouches called the _____.
Haustra
-
The large intestine is responsible for the elimination of waste and for _____.
Absorption of fluids.
-
The proximal pouch like portion of the large intestine is the _____.
Cecum
-
The _____ is attached to the posteromedial side of the cecum.
Appendix
-
The junction of the cecum and the ileum is the _____.
Ileocecal valve
-
The cavity within a tube is termed the _____.
Lumen
-
The colon is divided into what four portions?
Ascending, transverse, descending, sigmoid.
-
The ascending colon is between _____ and _____.
The cecum and the hepatic flexure
-
The transverse colon is between the _____ and _____.
The hepatic flexure and the splenic flexure.
-
The descending colon is between _____ and _____.
The splenic flexure and the sigmoid colon.
-
The sigmoid colon ends in the _____.
Rectum
-
The rectum extends from the sigmoid colon to the _____.
Anal canal
-
Just above the anal canal is a dilation called the _____.
Rectal ampulla
-
The anal canal terminates at the _____.
Anus
-
The rectum and anal canal have _____ AP curves.
Two
-
_____ is contraction waves of the digestive tube.
Peristalsis
-
How many waves occur in the stomach per minute.
3 to 4
-
The average emptying time of a normal stomach is _____.
2 to 3 hours
-
Contractions in the duodenum and jejunum occur at intervals of _____ during digestion.
3 to 4 seconds.
-
A barium meal normally reaches the ileocecal valve in _____.
2 to 3 hours
-
_____ radiography makes it possible to observe the alimentary canal in motion.
Fluoroscopic
-
The contrast medium universally used in examinations of the alimentary canal is _____.
Barium Sulfate.
-
Barium sulfate is available as _____ and _____.
Dry powder and liquid.
-
In addition to barium sulfate, _____ is also used.
Water soluble iodinated contrast media.
-
If water-soluble contrast escapes into the peritoneum what ill effects result.
No ill effects
-
A disadvantage of iodinated preparations is their _____.
Strongly bitter taste
-
A common compression device is a _____.
Compression paddle
-
One of the most important considerations in gastrointestinal radiography is the elimination of _____.
Motion.
-
The highest degree of motor activity is normally found in _____ and _____.
Stomach and proximal small intestine.
-
Narcotics, respiration, body position and pathologic changes can affect _____.
Peristaltic speed
-
The esophagus may be examined by performing a _____ study.
Single/double contrast.
-
When using fluoroscopy to view the esophagus using a double contrast study, _____ and _____ are the 2 contrast agents.
High-density barium and CO2 crystals.
-
What weight to volume suspension should be used for the single contrast technique of the esophagus?
30-50%
-
How many steps are in the single contrast esophagus?
3
-
For single contrast exams of the esophagus what position does the patient start out in.
upright.
-
For single contrast exams of the esophagus what is the second position is _____.
Horizontal or Trendelenburg
-
For the single contrast exam of the esophagus what is the 3rd position is _____.
Upright drinking barium.
-
Foreign bodies lodges in the _____ and _____ can normally be demonstrated without contrast media.
Pharynx and upper part the esophagus
-
What are the projections for the esophagus?
AP/PA, obliques and lateral
-
What are the projections for the stomach and duodenum?
PA/AP, PA axial, PA/AP oblique, lateral
-
What are the projections for small intestine?
PA/AP
-
What are the projections for large intestine?
PA/AP, PA/AP Axial, obliques, lower lateral, AP/PA decub
-
What size IR is used for esophageal studies?
14x17 portrait
-
Where is the IR centered for all esophageal studies?
T5-T6
-
What is the patient position for the oblique esophagus?
RAO or LPO
-
The body forms and angle of _____ degrees from MSP, when performing oblique esophageal studies.
35-40*
-
For the RAO position of the esophagus, how should you position the patient's arms?
The right arms should be down at the patient's side the left arm should be resting on the pillow (For the LPO position the left arm will be down and right up)
-
For the oblique study of the esophagus, center the elevated size black inches lateral to MSP.
2"
-
Why is the recumbent position preferred over the upright position for the esophageal exams?
The contrast will flow against gravity making the images have better contrast.
-
The contrast filled esophagus should be demonstrated from _____ to _____.
Lower part of neck to esophogastric junction.
-
What should the esophagus be superimposed over in the AP/PA projection?
The t-spine
-
The lesser curvature starts at the esophogastric junction and ends at the what?
Pylorus
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