Immobilization Devices Flashcards Preview

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Flashcards in Immobilization Devices Deck (13)
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1
Q

Why are immobilization devices used?

A
  1. reproducibility
  2. accuracy
    - not moving, losing marks
    - no change/ alteration
    - allow for specific positioning
2
Q

missing a tumor __-__ times can result in failure of treatment

A

1,2

3
Q

__ % or greater in differences in dose result in possible failure of treatment

A

10

4
Q

In a study, __% of patients had errors in treatments.

-chest, abdomen, pelvis

A

15

5
Q

3 categories of immobilization Devices

A
  1. Patient positioning aids
  2. Simple Imm Dev
  3. Complex Imm Dev (customized)
6
Q

PPA-TX sponges

A

A-F
B= neutral
C= chin elevated a little bit
F= raises head

7
Q

PPA-Prone Pillow

A

supports chest
head up
arms need to be in the same position every time

8
Q

PPA-Arm Board

A

gets arms out of treatment field

9
Q

Simple Immobilization devices- bite block

A

do restrict movement, not as much as complex

  • in addition to positioning aids
  • tape, velcro, bite blocks, arm & foot straps
10
Q

arm stretcher

A

for head and neck treatments, to get shoulders out of the way
Indicators for how long it needs to be

11
Q

complex immobilization devices- Alpha Cradle

A
restrict patient movement
reproducibility
*styrofoam
*cannot reuse alpha cradles
Advantage of aquaplast- you can mark on it
*heat to 160 degrees
12
Q

complex immobilization devices- vac bag

A

let air out

let it in if you mess up

13
Q

complex immobilization devices- aquaplast mask

A

can attenuate beam

-cut out as little as possible