bony thorax Flashcards

1
Q

SID for AP lordotic chest

A

72 inches

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2
Q

AP lordotic chest evaluation criteria

-Sternal clavicular ends projected (above/below) the lung apices
-Distances from the vertebral column to the _____________
-___________ lung field is at the center of the exposure field
-___________________ are included within the exposure field

A

-above
-clavicular ends are equal
-superior
-Clavicles, apices, and two-thirds of the lungs

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3
Q

positioning for AP lordotic chest

A

patient stand 12 inches away from IR, lean back, roll shoulders forward

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4
Q

respiration instructions for AP Lordotic Chest

A

second full inspiration

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5
Q

CR angle for AP lordotic chest (standing)

A

perpendicular to IR

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6
Q

CR angle for AP lordotic chest (supine)

A

15-20 cephalic

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7
Q

CR entering for AP lordotic chest (standing and supine)

A

3-4 inches below the jugular notch (mid-sternum)

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8
Q

CR angle for RAO sternum

A

perpendicular to IR

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9
Q

CR entrance for RAO sternum

A

center of sternum, 1 inch to the left of midline and midway b/t jugular notch and xiphoid process

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10
Q

SID for sternum (RAO and lateral)

A

40 inches

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11
Q

kVp for sternum

A

70-85 for RAO
75-85 for lateral

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12
Q

RAO sternum evaluation criteria
-Sternum is visualized _____________
-Sternum is visualized next to the _____________ with no superimposition by the vertebrae
-No distortion due to ____________

A

-over the heart shadow
-vertebral column
-over rotation

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13
Q

positioning for RAO sternum

A

-oblique 15-20 degrees toward right side, RAO
-align long axis of sternum to CR and to midline of bucky
-top of IR approx. 1 1/2 inches superior to the jugular notch

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14
Q

respiration instructions for RAO sternum

A

expiration

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15
Q

positioning for lateral sternum

A

arms drawn back, chest thrusted forward

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16
Q

CR angle for lateral sternum

A

perpendicular to IR

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17
Q

CR entrance for lateral sternum

A

center of sternum (midway between the jugular notch and xiphoid process)

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18
Q

respiration instructions for lateral sternum

A

inspiration

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19
Q

how much light field should we have for sternum exams?

A

1.5 inches of light above jugular notch

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20
Q

evaluation criteria for lateral sternum
-Entire sternum with minimal overlap of soft tissues
-Entire sternum with ______________________
-Lower aspect of sternum not obscured by __________

A

-no superimposition of ribs…no rotation
-breast tissues

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21
Q

which ribs are the true ribs?

A

ribs 1-7

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22
Q

which ribs are the false ribs?

A

ribs 8-12

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23
Q

what makes a rib a true vs. false rib?

A

true rib = articulate directly with the sternum and their costal cartilages
false rib = indirectly connect with sternum; costal cartilage connect with the 7th cartilage by the costochondral joint

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24
Q

false ribs indirectly connect with sternum; costal cartilage connect with the 7th cartilage by the ______________________

A

costochondral joint

25
Q

which ribs are the floating ribs?

A

ribs 11-12 (technically false ribs)

26
Q

floating ribs do not attach to ________________________

A

the sternum or to another rib

27
Q

CR angle for AP/PA bilateral ribs - above diaphragm

A

perpendicular to IR

28
Q

CR entrance for AP/PA bilateral ribs - above diaphragm

A

MSP at 3-4 inches below jugular notch (T-7)

29
Q

CR angle for AP/PA bilateral ribs - below diaphragm

A

perpendicular to IR

30
Q

CR entrance for AP/PA bilateral ribs - below diaphragm

A

MSP at level midway between xiphoid process and lower rib margin (slightly above pelvic crest)

31
Q

breathing instructions for AP/PA bilateral/unilateral ribs - below diaphragm

A

on full expiration

32
Q

breathing instructions for AP/PA bilateral/unilateral ribs - above diaphragm

A

on full inspiration

33
Q

evaluation criteria for bilateral posterior ribs
-Ribs _________ should be visualized for above diaphragm; _________ for below
-Rotation of the thorax (should/should not) be evident
-Optimal contrast and density to visualize the ribs __________________________
-No motion

A

-rib 1-9; 10-12 (minimum)
-should not
-through the lungs and heart shadow

34
Q

evaluation criteria for bilateral anterior ribs - below diaphragm

-Ribs _________ should be visualized for above diaphragm; _________ for below
-Rotation of the thorax (should/should not) be evident
-Optimal contrast and density to visualize the ribs through the ________________
-No motion

A

-rib 1-9; 10-12 (minimum)
-should not
-dense abdominal organs

35
Q

CR angle for AP/PA unilateral ribs - above diaphragm

A

perpendicular to IR

36
Q

CR entrance for AP/PA unilateral ribs - above diaphragm

A

between MSP and lateral margin of thorax 3-4 inches below jugular notch (T-7)

37
Q

respiration for AP/PA unilateral ribs - above diaphragm

A

suspend on full inspiration

38
Q

CR angle for AP/PA unilateral ribs - below diaphragm

A

perpendicular to IR

39
Q

CR entrance for AP/PA unilateral ribs - below diaphragm

A

between MSP and lateral margin of thorax midway between xiphoid process and the lower rib margin to the affected side

40
Q

respiration for AP/PA unilateral ribs - below diaphragm

A

suspend on full expiration

41
Q

IR size and orientation for bilateral rib study

A

17x14 landscape

42
Q

IR size and orientation for unilateral rib study above diaphragm

A

portrait 14x17

43
Q

IR size and orientation for unilateral rib study below diaphragm

A

landscape 14x14

44
Q

for an anterior rib injury, you would do a(n) ____ projection

A

PA

45
Q

for an posterior rib injury, you would do a(n) ____ projection

A

AP

46
Q

SID for rib studies

A

40-72 SID

(instructor preference for 40)

47
Q

According to Bontrager, patient position for bilateral and unilateral ribs - above diaphragm

A

erect

48
Q

According to Bontrager, patient position for bilateral and unilateral ribs - below diaphragm

A

supine

49
Q

Rotate patient into _____ posterior or anterior oblique
The affected side __________ to the IR for posterior oblique (AP)
The affected side ______from IR for anterior ribs (PA)

“A” away

A

45º, closest, away

50
Q

for oblique ribs, raise _________ arm up and keep _______________ down and away from their side

A

affected side arm, opposite side arm

51
Q

you want an RAO sternum to be ____________

A

over the heart shadow (error on review doc)

52
Q

Obliquity for RAO sternum

A

oblique 15-20 degrees toward right side, RAO

53
Q

jugular notch corresponds to ______

A

T2-T3

54
Q

sternal angle corresponds to ________

A

level of the intervertebral disk space between T4 and T5

55
Q

Xiphoid process corresponds to _________

A

T9-T10

56
Q

Inferior costal margin corresponds to ___________

A

L2-L3

57
Q

what is the only bony connection between each shoulder girdle and the bony thorax?

A

SC joint

58
Q

for a thicker patient in RAO sternum exams, you would use ___________. for a thinner patient, you would use ________

A

less obliquity (15 degrees); more obliquity (20 degrees)