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vtt 112 - diagnostic imaging > final review > Flashcards

final review Flashcards

not everything - main things for me to review

1
Q

properties of EMR

A
  • affect photographic film
  • ability to penetrate tissues
  • biological changes to tissue
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2
Q

collimator

A

mainly limits exposed area

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3
Q

flow of electrons

A

cathode to anode end

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4
Q

position for animal with severe heart failure

A

VD - on back

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5
Q

injured animal

A

injured area face DOWN closer to cassette

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6
Q

position for animal with difficulty breathing

A

DV - sternal

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7
Q

leg closest to table

A

is smaller than “up” leg

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8
Q

instinctive cat behavior

A

kneading
urine spraying

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9
Q

routine views for canine carpus

A

DPa and lateral

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10
Q

routine views for stifle joint

A

CrCa and lateral

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11
Q

OFD

A

distance from object to film

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12
Q

rectification

A

changing AC to DC

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13
Q

cathode

A
  • negative end
  • contains: filament and focusing cup
  • reflects electron cloud
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14
Q

anode

A
  • positive end
  • contains: focal spot, rotating and stationary anode
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15
Q

heel effect

A

thicker part of animal under cathode end

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16
Q

step up transformer

A

increases voltage to produce X-rays

17
Q

parallel dental radiograph

A

sensor directly behind tooth and beam perpendicular to sensor

18
Q

bisecting angle

A
  • avoid elongation and foreshortening
  • plane of film and long axis of tooth
19
Q

beam perpendicular to film

A

foreshortening

20
Q

beam perpendicular to tooth

A

elongation

21
Q

rostral maxilla

A

50-60 degree angle
center on incisors

22
Q

lateral oblique maxilla

A

45-60 degree angle
near eye

23
Q

lateral maxilla

A

straight lateral
premolars and molars

24
Q

rostral mandible

A

60 degree angle
center on incisors

25
Q

lateral oblique mandible

A

45 degree angle
center on space between incisor and canine

26
Q

lateral mandible

A

straight lateral
premolar 2

27
Q

distolateral

A

4th premolar
45 degree angle

28
Q

radiographic positions are described by

A
  • direction beam travels
  • surface adjacent to film
29
Q

exposed light, developed and fixed

A

purple tint

30
Q

exposed correctly, left in developer too long

A

purple

31
Q

exposed correctly, developed and not fixed

A

dark

32
Q

not exposed, fixed first and not developed

A

clear

33
Q

directly out of film bin, exposed, not developed or fixed

A

black

34
Q

rotating anode

A

negative side with filament

35
Q

rules for position of spine

A
  • stretch using front and rear legs
  • anesthetized
  • spine and sternum are same distance off table

vtt 112 - diagnostic imaging (9 decks)

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