Procedures Unit 3

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Anonymous
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177943
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Procedures Unit 3
Updated:
2012-10-15 23:43:04
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Thoracic Viscera
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Unit 3
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  1. What extends from the thoracic aperture to the diaphragm? What does it protect?
    • Thorax
    • Thoracic Viscera
  2. What has 16 to 20 C shaped cartilaginous rings?
    trachea
  3. Extends from C6-T5
    Trachea
  4. Is at T4 or T5.
    Carina
  5. Which primary bronchus is wider, shorter, and more vertical?
    Right
  6. Primary bronchus that is smaller in diameter but about twice as long as the other bronchus
    Left
  7. Each terminal bronchioles terminate into what?
    alveoli (air sacs)
  8. Fill all of the space not occupied by other structures in the thoracic cavity.
    two lungs
  9. How many lobes and fissures does the right lung have?
    • 3 lobes(superior, middle, inferior)
    • 2 fissures(oblique and horizontal)
  10. How many lobes and fissures does the left lung have?
    • 2 lobes(superior and inferior)
    • 1 fissure(oblique)
  11. Located posterior to the trachea and extends from C6-T11.
    esophagus
  12. Part of the lymphatic system.
    thymus gland
  13. Located posterior to the upper sternum.
    Thymus gland
  14. Vary prominent in infants but gradually atophies as a person ages.
    Thymus gland
  15. Located posterior to the body of the sternum and anterior to T5-T8.
    heart
  16. The heart lies in an _________ plane with 2/3's lying to the ______of midline.
    • oblique
    • left
  17. The great vessels in the mediastinum:
    • inferior vena cava
    • superior vena cava
    • aorta
    • large pulmonary arteries and veins
    • errect to supine changes their appearance/document if done different than normal
  18. The more SID used the less__________.
    magnification of the part
  19. Why is a PA projection done instead of an AP projection?
    because of the anterior location of the heart
  20. What do we use a grid with?
    higher kVp
  21. What happens when a grid is not used(scatter)?
    • weak x-rays cant penetrate it to make its way to the IR
    • looks like it is full of fluid
  22. 109-130 kVp, 2.5-3 mAs, with grid
    example chest x-ray technical factor
  23. How do we ensure that PA chest radiographs have no rotation?
    ensure that pt is standing evenly on both feet with both shoulders rolled forward and downward
  24. What demonstrates a correct PA chest radiograph?
    • sc joints should be equal distance
    • 2/3 of heart shadow should be midsagittal and to the left
    • 1/3 of heart shadow should be midsagittal and to the right
  25. Overpenetration occurs when AEC number is_______.
    low
  26. Underpenetration occurs when AEC# is ________.
    high
  27. A pt's side _______ to the IR is best demonstrated on the finished radiograph.
    closest
  28. What defines a true lateral?
    • no rotation of tilt
    • weight equally distributed
    • 90 degree angle
    • no leaning-foreshortening/elongation
    • increase OID to increase magnification
  29. There should be no tilt, or leaning sideways of the pt, this is evidenced by what?
    closed disk spaces of the thoracic vertebrae
  30. What size cassette is used for a PA chest projection?
    14 x 17 LW (CW for hypersthenic pts.)
  31. Where should the lead blocker be on a PA chest projection?
    top
  32. What cells should be selected when using AEC for PA chest projection?
    outer cells
  33. What is the kVp range for a PA chest projection?
    110-125 kVp
  34. A lateral projection follows the same steps as a PA projection, just remember to do what?
    place your marker in front of the pt on the side closer to the IR

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