Abdomen Flashcards

1
Q

Flat Plate Abdomen/ KUB projections/ views

A
  1. AP Supine
  2. AP Upright
  3. AP/ PA Upright Substitute (Left Lt decub if pt too ill to stand)
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2
Q

Demo size and shape of liver, spleen, kidneys, and intra abdominal calcification and masses

A

Flat Plate Abdomen/ KUB AP Supine

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3
Q

Flat Plate Abdomen/ KUB is only done in — unless required by certain indications

A

supine

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4
Q

Flat Plate Abdomen/ KUB AP Supine cxt and crd

A

14x17- longit- BD- Perp- MSP- iliac crest

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5
Q

Respiration suspended at end of expiration so that abdominal organs are not compressed

A

Flat Plate Abdomen/ KUB AP Supine and Uprght

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6
Q

Demo visceroptosis and air-fluid levels

A

Flat Plate Abdomen/ KUB AP Upright

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7
Q

Flat Plate Abdomen/ KUB AP Upright CXT and CRD

A

14x17- longit- BD
(H)- MSP at 2” (5cm) above iliac crest

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8
Q

Use marker arrow in H RP

A

Flat Plate Abdomen/ KUB AP Upright

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9
Q

H RP requires ensured inclusion of the diaphragm but if bladder is to be included, center IR at iliac crest

A

Flat Plate Abdomen/ KUB AP Upright

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10
Q

If pt is too tall to include entire pelvic area, a 2nd radiography to in include bladder on a 10x12 CW IR is needed

A

Flat Plate Abdomen/ KUB AP Upright

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11
Q

10x12- CW- MLL- 2-3” (5-7cm) above upper border of SP

A

Flat Plate Abdomen/ KUB AP Upright if pt is too tall

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12
Q

When kidneys are nor of primary interest, consider (1) Proj as it greatly reduced pt (2) dose

A
  1. Upright PA
  2. gonadal
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13
Q

Why should upright PA Proj be considered when kidneys are not of primary interest during flat plate abdomen/ KUB?

A

Kidneys are posteriorly positioned and there is higher radiation dose upon entry. Thus, when xray enters from posterior, there is lower gonadal dose because of the attenuation effect

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14
Q

Used when pt is too ill to dtand to demo air-fluid levels

A

Flat Plate Abdomen/ KUB AP/ PA Upright Substitute (L Lat Decub)

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15
Q

Have pt lie on side for several minutes before exposure to allow air to rsie to its highest level within the abdomen

A

Flat Plate Abdomen/ KUB AP/ PA Upright Substitute (L Lat Decub)

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16
Q

14x17 vertically transverse on the surf of the RT (to follow LA of abdomen)

A

Flat Plate Abdomen/ KUB AP/ PA Upright Substitute (L Lat Decub)

17
Q

Adjust height of CXT w grid so that the MLL or IR is centered to MSP and MTL at iliac crest/ 2” above iliac crest

A

Flat Plate Abdomen/ KUB AP/ PA Upright Substitute (L Lat Decub)

18
Q

R Lat decub can be made if pt cannot lie on L side

A

Flat Plate Abdomen/ KUB AP/ PA Upright Substitute (L Lat Decub)

19
Q

Why is left lat decub recommended during Flat Plate Abdomen/ KUB AP/ PA Upright?

A

To ensure that free air rises and stands out clearly against the liver (solid mass), detecting air-fluid levels.

If pt lie on their right, rising air might overlap with the air-filled intestines (splenic flexure of LI)

20
Q

Done if pt is due for emergency operation

A

Acute Abdomen Series/ Three-way series

21
Q

Acute Abdomen Series/ Three-way series Indication

A

To rule out free air and infections

22
Q

Acute Abdomen Series/ Three-way series Proj/Views

A
  1. AP w supine
  2. AP w upright or L lat decub
  3. PA chest
23
Q

Used to detect free air that may accumulate under the diaphragm

A

Acute Abdomen Series/ Three-way series PA Chest

24
Q

Also used for cardiopulmonary clearance

A

Acute Abdomen Series/ Three-way series PA Chest

25
Q

Acute Abdomen Series vs Abdominal Sequencing

A

Acute Abdomen (three way) Series: RT is stationary and pt is moving (positioned AP supine, upright, and PA chest)

Abdominal sequencing: RTable moves along w the pt

26
Q

Demo small amount of intra peritoneal gas in acute abdominal cases

A

Abdominal sequencing

27
Q

Abdominal sequencing

(1) recommended that pt be kept in L lat posn on a stretcher for (2) mins before abdominal radiography are obtained. This posn allow (3) into the area under the R hemidiaphragm, where the image will not be superimposed by the gastric gas bubbe

A
  1. Miller
  2. 10-20
  3. gas to rise
28
Q

Abdominal suqeuncing

If larger amounts of free air are present, many Radiology dept may suggest that the pt lie on the side for a minimum of (1) before teh radiography is produced

29
Q

Abdominal suqeuncing

Smaller amount of air= (1) time the pt is in L lat in order to (2)

A
  1. longer
  2. give chance to all the air to rise from the side not dep on RT
30
Q

Abdominal suqeuncing

3 Pt/ Structure positioning

A
  1. AP/ PA of chest and upper abdomen (L lat decub) (Chest expo etchnique)
  2. AP/ PA of chest and abdomen (L lat decub, pt being moved onto a H’lly placed table- tilt table and pt to upright posn)
  3. RT back to H posn for Supine AP/PA of abdomen