Air Contrast Be, Be Through A Colostomy, And Defecography

Front 1

what are air contrast BEs done for?

Back 1

early contrast detection of polyps or tumors

Front 2

why is an exceptionally clean colon important for ACBE?

Back 2

so fecal matter doesn't obscure or simulate small polyps or tumor masses

Front 3

what is air used for in ACBEs?

Back 3

to distend lumen and show inner mucosal lining

Front 4

what is the name of the device used to pump air into the patient's rectum? what is the name of the device used to pump up the retention balloon?

Back 4

sphygomanometer; cufflator`

Front 5

how many puffs of the cufflator for retention balloon?

Back 5

1

Front 6

how and what type of contrast is used for ACBE?

Back 6

500-1000ccs of high density barium

Front 7

what is the scout for ACBE?

Back 7

KUB

Front 8

what kVp for ACBE?

Back 8

90 kVp

Front 9

what may be given to patients prior to filling the rectum with contrast? why?

Back 9

glucagon may be given to reduce intestinal spasms by slowing peristalsis

Front 10

what position is the pt started in for ACBE exams?

Back 10

prone

Front 11

in which fashion is the large instestine filled with contrast for ACBE?

Back 11

retrograde

Front 12

when are overheads performs for ACBE?

Back 12

after exam but before draining contrast

Front 13

why must overheads be performed quickly after ACBE is completed?

Back 13

so the air and or contrast does not leak out

Front 14

what are the overhead ACBE films?

Back 14

• AP/PA- supine/prone
  
• AP oblique- RPO
• AP oblique- LPO
• PA axial/AP axial- prone/supine
• AP- right lateral decub
• PA- left lateral decub
• Rt. lateral- ventral decub
• AP supine (post evac KUB)

Front 15

optional overheads for ACBE

Back 15

• PA obliques-LAO, RAO
  
• AP- erect posterior

Front 16

The same techniques for AP or PA are also used for what 2 projections?

Back 16

left and right lateral decubitus

Front 17

what is the projection for the right lateral decub position?

Back 17

AP

Front 18

what SID for AP- Rt. lateral decub?

Back 18

40"

Front 19

what size and orientation is the IR for AP-Rt. lateral decub?

Back 19

14x17; LW to part

Front 20

what size focal spot to AP-Rt. lat decub?

Back 20

SFS

Front 21

what plane is T and centered to the IR for decubs?

Back 21

MSP

Front 22

the IR is centered to the level of ___ (or higher for __)

Back 22

iliac crests; flexure

Front 23

CR for Rt. lateral decub= down ___, at the height of ___.

Back 23

MSP; iliac crest

Front 24

respiration for right lateral decub

Back 24

expiration

Front 25

structures shown for AP- Rt. lateral decub

Back 25

medial wall of ascending colon and lateral wall of descending colon

Front 26

what is the projection for left lateral decubitus position?

Back 26

PA

Front 27

CR for Lt. lateral decub = down ___ @ height of ____. what vertebral height is this at?

Back 27

MSP; iliac crest; L4-L5

Front 28

respiration for PA- left lat. decub

Back 28

expiration

Front 29

structures shown in a PA- left lateral decub

Back 29

shows lateral wall of ascending colon and medial wall of descending colon

Front 30

what is the position for the Rt. lateral projection?

Back 30

ventral decubitus

Front 31

what is the size of the collimated field and what orientation for the rt. lateral projection? focal spot size?

Back 31

10x12; LW; SFS; 40" SID

Front 32

CR for Rt. lateral projection= down the ___ @ height of ___.

Back 32

MSP; ASIS

Front 33

what is the respiration for Rt. lateral projection?

Back 33

suspend respiration

Front 34

what is the position for the Rt. lateral projection used for double contrast BEs? what is the lateral projection and position used for single contrast BE?

Back 34

ventral decubitus; Lt. Lateral- left lateral recumbent

Front 35

the thickest part of a compensator filter is placed where?

Back 35

where the air is in the body (highest part of the body)

Front 36

what should be shown on radiographs of the AP and PA projections?

Back 36

area from the left colic flexure to the rectum

Front 37

how is no rotation determined on radiographs of an AP or PA projection?

Back 37

symmetry of the ribs and pelvis

Front 38

what is demonstrated in radiographs of the rt lateral projection/ventral decub position?

Back 38

shows posterior portions of the colon

Front 39

what should be included in the rt lateral projection?

Back 39

area from flexures to the rectum

Front 40

why should the enema tip be removed for rt lateral projection?

Back 40

for an unobstructed image of the rectum

Front 41

what is the position for the AP projection done standing?

Back 41

erect posterior

Front 42

what size collimation and IR orientation for AP/erect posterior?

Back 42

14x17; LW

Front 43

what SID and focal spot size for AP/erect posterior?

Back 43

40" SID; SFS

Front 44

what body place is T and centered to the IR for erect posterior position?

Back 44

MSP

Front 45

CR is T @ height of ___ , down __ for erect posterior position

Back 45

iliac crests; MSP

Front 46

what directional plane is the fluid line for upright positions? decub positions?

Back 46

upright= transverse plane

decub= sagittal plane

Front 47

when patient is supine, when is the air?

Back 47

in the transverse colon

Front 48

what is the post evac for ACBE?

Back 48

KUB

Front 49

kVp for abdomen w/o contrast media?

Back 49

75 kVp

Front 50

what is the atomic# of barium?

Back 50

56

Front 51

what is the kVp for abdomen w/barium?

Back 51

110-115kvp

Front 52

what increments are kVp increased or decreased? what is done to mas?

Back 52

15%; its cut to 1/2 its original value

Front 53

mAs for abdomen w/o contrast?

Back 53

32 mAs

Front 54

kVp from 75 to 99kVp...what mAs?

Back 54

8 mAs

Front 55

what is the opening in the body called when a patient has had a colostomy?

Back 55

stoma

Front 56

pt. prep for BE through a colostomy

Back 56

pt. will irrigate stoma night before and morning of exam

Front 57

changes in gowning for colostomy pts.

Back 57

gown opens in the front

Front 58

when a BE is to be done through the rectum and colostomy, which is performed first when overheads are ordered?

Back 58

rectal BE

Front 59

how many bags of barium should be prepared when both a rectal and colostomy BE are being done?

Back 59

2

Front 60

what is defecography?

Back 60

a barium enema where the pt. will defecate under fluoroscopy

Front 61

what is the purpose of defecography?

Back 61

done to see sphincter muscle incontinence