Exam 1 (Basics/Chest and Abd Flashcards Preview

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Flashcards in Exam 1 (Basics/Chest and Abd Deck (66):
1

overall blackening/darkness of the film

density

2

density is controlled by _____

mAs

3

the difference between adjacent densities on a radiograph or varying shades of gray on film

contrast

4

contrast is controlled by

kVp

5

other influencing factors of radiographic quality

amount or type of tissue
collimation
filtration and grids
SID
processing

6

T or F
a film does not need to be repeated routinely for contrast

true

7

if you double mA, mAs will be _____

doubled

8

100mA x .2s =

20 mAs

9

200mA x .2s

40 mAs

10

how do you make the flim twice as dark?

double the mAs

11

how do you make the film half as dark?

cut the mAs in half

12

if you double the time the mAs is _____

doubled

13

if you half the time, the mAs is _____

halved

14

doubling or halving the the mAs will double or half ______, and is known as what?

flim density, 50% mAs reciprocal rule

15

adding or subtracting ___% kVp has the same effect on film density as doubling or halving the mAs, and is known as what?

15%, 15% kVp rule

16

if you can see the bone, leave the _____ alone

kVp

17

if SID is changed, is mAs or kVp adjusted?

mAs

18

if SID changes from 40" to 72" multiply the mAs by __

3

19

if SID is changed from 72 to 40, how would you change the mAs

divide by 3

20

chest radiography requires a high ____

kVp

21

chest films are at ___"
why?

72
reduce magnification of the heart

22

what filter is used for chest films?

none

23

what views are in a routine chest series?

PA
left lateral

24

film size for PA chest

14x17

25

where do you position the cassette for PA film?

1 1/2 inches above the VP

26

where is the ID blocker on PA chest?

UP

27

where is the marker for PA chest?

L on left side above shoulder

28

what are the breathing instructions for PA chest?

deep inspiration and hold

29

what filter is used for PA chest?

none

30

optimal PA chest films have ___ thoracics identified well

4

31

optimal PA chest has how many ribs visible?

10 posterior or 7 anterior

32

PA chest needs to include the top of the ____ to the bottom of the _____

apices
costophrenic angle

33

film size for left lateral chest

14x17

34

patient positioning for left lateral chest

left side against bucky, arms extended over head

35

breathing instructions for left lateral chest

deep inspiration and hold

36

filter used for left lateral chest

none

37

chest accessory views (2)

apical lordotic
left lateral decubitus

38

how is an apical lordotic done?

chest is tipped and CR is perpendicular to film
or
chest is parallel to film and CR is tilted 15 degrees cephalic

39

why is apical lordotic view done?

to project clavicles

40

film size for KUB

14x17

41

for KUB, CR is at ____

iliac crest

42

breathing instructions for KUB

exhale and hold

43

what does a KUB show?

kidneys, ureter, bladder

44

aka KUB

recumbent, flat plate

45

if aneurysm is suspected, do _____

lateral abdomen

46

an upright AP abdomen is done to show what? (2)

free air in abdominal cavity
air-fluid levels

47

upright AP abdomen, top of cassette is at the level of the _____

axilla

48

upright AP abdomen CR is approximately where?

2" above iliac crest

49

upright AP abdomen needs to include the top of the ____

diaphragm

50

clinic rib series

AP unilateral AD or BD
AD or BD posterior oblique
PA chest

51

why would a rib view be done recumbent?

to show better detail

52

film placement for AP AD recumbent ribs?

top of film is 1 1/2 inches above VP

53

film placement for AP BD recumbent ribs

bottom of film is at iliac crest

54

patient positioning for posterior oblique ribs

rotate unaffected side 45 degrees away from the bucky

55

flim placement for AD posterior oblique ribs

top of cassette is 1 1/2 inches above VP

56

flim placement for BD posterior oblique ribs

bottom of cassette at ililac crest

57

breathing instructions for AD posterior oblique ribs

inhale and hold

58

breathing instructions for BD posterior oblique ribs

exhale and hold

59

universal routine rib series

AP or PA (unilateral or bilateral)
posterior oblique
PA chest

60

SID for AP or PA ribs

40"

61

film size and orientation for bilateral ribs

14x17 transverse

62

cassette placement for bilateral AD ribs

1 1/2 inches above shoulders

63

cassette placement for bilteral BD ribs

bottom of cassette at crest

64

4 most common reasons for pediatric radiography

chest
abdomen
bone survey
extremities

65

it is usually normal to see air where?

under the left hemi-diaphragm (megan blas)

66

gonadal shield may be used on ____ if it doesnt interfere with abdominal anatomy

males