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RAD-141 SCAPULA CLAVICLE AC JOINTS

  1. what tool do we use on the clavicle if the ac joints are dark on a radiograph
    boomerang compensation filter
  2. what are the routine positions for the clavicle scapula and ac joints
    • clavicle
    • ap
    • ap axial

    • scapula
    • ap
    • lateral

    • ac joints
    • ap bilateral w/o weights
    • ap bilateral with weights
  3. List the factors for an AP clavicle
    where is the CR
    what is the breathing technique
    • CR perpendicular to mid clavicle
    • Center clavicle to IR
    • 10x12 crosswise
    • collimate to sc and ac joints
    • suspend respiration at the end of inhalation (take in a breath and hold it)
  4. how do we perform the ap axial clavicle
    what is the purpose of this projection
    • CR 15-30 degrees cephalad to mid clavicle (PA can also be taken but must have a 15-20 degree caudal angle
    • center clavicle to IR
    • collimate AC and SC joints
    • suspend respiration at the end inhalation

    will project most of the clavicle above the scapula and ribs and only the medial portion of the clavicle will be superimposed by the first and second ribs
  5. how would we angle the tube on a hypersthenic average person or asthenic person doing a ap axial clavicle
    • hypersthenic - 15 degrees
    • average person 20 degrees
    • asthenic (lanky) - 30 degrees
  6. how do we perform an ap scapula
    where do we center the CR and shoulder
    • 10x12 crosswise
    • center mid scapula to IR
    • CR perpendicular to midscapula 2 inches inferior to coracoid process or to level of axilla and approx. 2 inches for lateral margin of rib cage
    • abduct arm 90 degrees
    • breathing technique if patient can cooperate (shallow breathing)
  7. if we deal with a patient that shallow breathing is needed for an exam what tech factors should we adjust
    use low ma and long exposure time
  8. what is the purpose abducting the arm in a 90 degree angle in an ap scapula position
    it pulls the scapula away from the rib cage
  9. list all factors for the lateral position of the scapula
    what is the specific reasoning this position is used best for
    • 10x12 crosswise
    • center mid scapula to IR
    • CR perpendicular to midvertebral border of scapula
    • the avg person will be rotated 30-45 degrees from the lateral position which will result in a 45-90 degree anterior oblique (less rotation requires arm up across anterior chest )
    • suspend respiration during exposure

    best for viewing the body of the scapula acromion and coracoid process
  10. if you can see the scapula on top of the humerus and out of the way what position is this
    lateral position of the sohulder
  11. if you can see the humerus down and superimposed over the scapula what position is this
    y view scapula
  12. why is the lateral position not reccommended when the patient is recumbent
    because of increased OID
  13. how do we do a lateral position of the shoulder if the patient cannot stand
    • patient is supine in an RPO or LPO
    • rotate body 30 degrees or as needed to elevate the affected shoulder until body of scapula is in a true lateral
    • CR perpendicular to mid scapula lateral border
    • suspend respiration during exposure
  14. what is the SID for the AC joint
    72"
  15. List al lthe factors in positioning for an AC joint examination
    • 14x17 crosswise or two 10x12's crosswise for broad shoulders
    • CR mid way between AC joints 1 inch above jugular notch
    • suspend respiration during exposure (hold breath)
    • take one with and one w/o weights (8-10 pounds)
    • weights must be the same on both sides
  16. when holding the weights for an AC joint examination what body part should they hold it with
    their wrists not their hands make sure there wrists are relaxed they should not be holding the weights like luggage
  17. the lateral position of the scapula (RAO or LAO) is best to view what on the scapula (3 things)
    • body of scapula
    • coracoid process and acromion
  18. if you were to do a pa axial clavicle what must be different in the exam
    you must angle your tube 15-20 degrees caudal  (towards tail end) rather than normal 15-30 degrees cephalad in an ap
  19. the scapula extends from what two landmarks
    from 2nd posterior rib to 7 posterior rib
  20. both the sc and ac joints are what kind of joints
    plane or gliding
  21. the ac sc and scapulohumeral joint are all ______
    synovial
  22. which term describes the lateral end of the clavicles
    where is the CR for an AC joint
    • acromial extremity
    • 1in above the jug notch
  23. what are the exams that require a breathing technique or shallow breathing
    ap scapula transthoracic and sternum RAO
  24. which projection can be performed using a breathing technique
    ap scapula
  25. what angle of the scapula is located between the lateral and medial border
    inferior angle
  26. state one difference between the shoulder y view and lateral scapula
    arm placement arm is up much higher on a lateral scapula
  27. which of the projection will project the clavicles away from the apex of the lungs
    ap axial
Author
anatomy12
ID
248111
Card Set
RAD-141 SCAPULA CLAVICLE AC JOINTS
Description
xray
Updated

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