Wheelchairs and Positioning Flashcards

1
Q

Hands-free sitter

A

Patient can maintain seated position without use of hands, seating system emphasizes mobility, stability with base of support and comfort

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2
Q

Hands-dependent sitter

A

Patient uses one or more hands to maintain seated position, pelvis/trunk support required to enable free hands for functional activity

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3
Q

Propper sitter

A

Patient lacks ability to sit without support, total body support required for posture and repositioning

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4
Q

What body structure should be observed first for wheelchair positioning

A

Position of pelvis and trunk

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5
Q

If deformity exists seated in wheelchair what should you do

A

Apply manual pressure to determine if the deformity is flexible or inflexible

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6
Q

Pelvic obliquity

A

One side of pelvis is lower than other side which can lead to scoliotic posture and pressure ulcers on ischial tuberosity

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7
Q

Kyphosis

A

Pelvis rotates posteriorly
Sacral sitting
Flexion of lumbar spine
Clients slide forward in w/c

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8
Q

Scoliosis

A

Pelvis rotates to one side
Spine and trunk move in opposite direction

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9
Q

Lordosis

A

Pelvis rotates anteriorly
Increased curvature of lumbar spine
Patient use UE for support

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10
Q

Windswept deformity

A

Abduction and external rotation of one hip while the opposite hip is in adduction and internal rotation

Pelvis rotates laterally with thighs moving to opposite side

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11
Q

What hip ROM do you need for manual propulsion and sitting upright

A

90 degrees hip flexion

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12
Q

Reference seated position

A

Trunk upright in midline
Hip, knees, ankles 90 flexion
Pelvis natural
Head in mid-position
Arms at the side of trunk
Elbows flexion to 90

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13
Q

Prolonged sitting can result in

A

Pressure ulcers
Back pain
Joint contractures
LE edema
Postural deformity

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14
Q

What is the key to stability

A

Pelvic positioning

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15
Q

What provides the base of support for stability and movement when seated

A

Pelvis and thighs

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16
Q

Seat supports

A

Pelvis and thighs

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17
Q

Back supports

A

Posterior pelvis and spine

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18
Q

Pressure mapping

A

Use of pressure sensitive mat between client and seating surface to determine effectiveness of different cushions for relieving pressure on seating surface

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19
Q

Flat/planar cushion shape

A
  • None to minimal postural support
  • Patient can reposition themselves independently
  • Do not accommodate body shape
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20
Q

Standard contoured cushion shape

A
  • Contours based on body size
  • More support than flat
  • Distribute pressure across surface
  • Less expensive than custom-contoured
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21
Q

Custom-contoured cushion shape

A
  • Shaped to client body
  • Provide most support
  • Distribute pressure across surface
  • More expensive
  • Patients limited to one position
  • Transfers are more difficulty to perform
  • System not adaptable (child growth)
  • For patients who need support to maintain balance, have spinal or pelvis deformities, have muscle tone abnormalities or need additional lumbar support
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22
Q

Foam cushion

A
  • Variable density
  • Lightweight
  • Low in cost
  • Heat and moisture can build up
  • Custom-contoured foam is more expensive and provides better postural control, shearing, and weight shifting
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23
Q

Gel filled cushion

A
  • Conform to shape of buttocks
  • Heavy
  • Adequate for postural control
  • Sensitive to temperature
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24
Q

Air filled cushion

A
  • Lightweight
  • Provide even pressure relief when properly inflated
  • Reduce postural stability
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25
Q

Honeycomb-shape plastic cushion

A
  • Uneven pressure relief
  • Lightweight
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26
Q

Hybrid cushion

A
  • Combination of materials
  • Usually gel and foam
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27
Q

Alternating pressure cushion

A
  • Provide scheduled pressure relief through alternating levels of inflation and delation
  • Decrease postural stability
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28
Q

Pelvic stabilizer (SubASIS bar)

A

Positioned at front of pelvis to limit pelvis mobility (tilt, rotation, obliquity)

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29
Q

Thoracic supports

A

Places laterally to trunk and below armpit to facilitate trunk stability and prevent scoliosis

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30
Q

Thigh supports

A

Placed laterally or medially to thighs to control AB/AD for windswept deformity

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31
Q

Head rest positioing

A

Back to head on occiput

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32
Q

Seat width measurement

A

Widest part of hips/thighs plus 1-2 inches to leave room between thighs and chair for repositioning/transfers, to avoid rubbing/pressure and accommodate bulky clothing

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33
Q

Seat depth measurement

A

Measure base of back to popliteal space of knee minus 1-2 inches to ensure seat edge does not reach back of knee and restrict movement/circulation

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34
Q

Seat-back measurement

A

Measure from seat surface with cushion to top of shoulders

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35
Q

Seat height measurement

A

Measure popliteal space to bottom of clients heel with footrests having 2-inch clearance from floor to keep thighs parallel to flow and feet resting comfortability on footrests

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36
Q

If minimal trunk support is required

A

Can measure seat-back height to mid-back under the scapulae

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37
Q

If max trunk support is requried

A

Hight seat-back height may be needed

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38
Q

If seat-back hight is too

A

Contact with push rim will be limited

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39
Q

Sport chairs

A

Have lower seat-back height which increases functional mobility and decreases stability

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40
Q

Seat angle

A

Sloping of sat to the rear of wheelchair to help stabilize pelvis

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41
Q

Too much sloping of seat angle can

A

Make transfers more difficulty
Cause pressure

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42
Q

Back angle

A

Recline to ease pressure associated with hip flexion

43
Q

Armrest height measurement

A

Seating surface to bottom of client flexed elbow plus one inch to support UE and provide leverage for pushing up for pressure release and assisting in postural alignment

44
Q

If armrest too high

A

Shoulder elevation

45
Q

If armrest too low

A

Elicits leaning

46
Q

Marginal ambulatory user

A
  • Can walk short distances
  • May need w/c on occasion (outdoors)
  • Can benefit from power mobility (scooter)
47
Q

Manual wheelchair user

A
  • Can propel manual w/c with BUE and BLE or one of each or is pushed by caregiver
48
Q

Marginal manual wheelchair user

A
  • Can propel manual for short distance due to UE weakness, poor endurance
  • Use power wheelchair at times
49
Q

Totally or severely mobility impaired used

A
  • Unable to propel
  • TD on power chair
50
Q

Frame

A

Material chair is made of

51
Q

Frame affects

A

1) w/c weight
2) w/c structure
3) Durability
4) storage
5) Transportability

52
Q

Transport chair

A
  • Pushed by caregiver
  • Small rear wheels make them light and transportable
  • Short distances
  • Temporary use
53
Q

Manual chairs

A
  • Self-propelled or pushed by caregiver
  • Temporary use
54
Q

Types of manual chairs

A

1) Standard chair
2) Lightweight chair
3) Ultra-lightweight chiar
4) Heavy-duty chairs

55
Q

Standard chairs

A
  • Fold ability
  • Heavy
  • Made of steel
  • Limited adjustability
  • Read axil fixed
  • One-arm drive attachment
56
Q

Lightweight chairs

A
  • Similar to standard
  • Light
  • Made of aluminum
  • Limited adjustability
57
Q

Ultra-light weight chairs

A
  • Available as rigid or folding frames
  • Fold for transport
  • Adjustable axle
  • Quick-release wheels
  • Customizable
58
Q

Heavy-duty chairs

A
  • Clients > 300 lbs
  • Obesity or extreme spasticity
59
Q

Scooter

A
  • Pt. with limited walking ability
  • 3 or 4 wheels
  • steered with tiler
  • Swiveled seat for transfer
  • Adjustability
60
Q

Power chairs

A
  • Pt. who cannot propel
  • Controlled with joystick, breath, head, chin, eye, tongue
  • Very customizable
  • Drive wheel placed at front, middle or rear
61
Q

Patients who require tilt and recline features

A

Hip contracure
Need pressure relief
Need fatigue relief
Cannot reposition independently
Unable to maintain upright seated position

62
Q

Tilt and recline feature support

A

Muscle tone
Orthostasis
Catheterization
Head/trunk control
Visual contact

63
Q

Tilt feature

A

Seat to back angle is fixed with 0-45 degrees change orientation in space but not position

Prevents shearing and reduced pressure

Good for self-care activities

64
Q

Recline feature

A

Seat to back angle changes to more than 90 degrees moving from upright to horizontal position

Provides rest break

Good for self-care activities and orthostatic hypotension

65
Q

Benefits of standing chairs

A
  • Improve circulation
  • Improve bowel/bladder function
  • Reduce LE spasticity
  • Provides pressure relief
  • Can reach higher items
  • Increased independence
  • Social interactions at face-to-face level
66
Q

Population for hemi-height chair

A

Short stature
Need to self-propel
Lower seat height

67
Q

Population for heavy-duty chair

A

Obesity
Severe spasticity

68
Q

Rear axle placement for heavy-duty chair

A

Displaced forward

69
Q

Rear axle placement for amputee chair

A

Set back to increase stability and compensate for loss of weight of missing limb and changed centered of gravity

70
Q

Rubber tires

A

No maintenance

71
Q

Pneumatic tires (air filled)

A

Maintenance to keep filled with air due to shock absorbing during use

72
Q

Drive wheel position for increases stability

A

Patient center of mass is ahead of drive wheel axle

73
Q

Drive wheel position for increased mobility

A

Drive wheel close to or slightly in front of patient center of mass

74
Q

When axle is aligned below shoulders

A

Access to push rims is improved resulting in increased movement efficiency

75
Q

Power-assisted wheels

A

Motor component in wheel hub activated when patient pushes on rims to decrease effort required

76
Q

Lapboard

A

Fits across armrests to support weak UE or provide work surface

77
Q

Positioning belt

A

Stabilizes pelvis at a 45 degree angle to base of seat back

78
Q

Hand rim projections

A

Compensate for weak grasp to propel chair

79
Q

Break level extender

A

Compensate for limited ROM for reaching break

80
Q

Anti-tip device

A

Prevents chair from tipping backward

81
Q

Hill holder

A

Prevents chair from going backwards when traveling up hill/ramp but allows for forward movement

82
Q

Push handles

A

Make pushing chair easier for caregiver

83
Q

Adjustable-tension backrest

A

Replaces sling backrest to allow for adjusted tension to loosen or tighten (common for kyphosis)

84
Q

Wedge cushion

A

Anti-thrust cushion that has higher front than back to prevent forward sliding

85
Q

Wedge cushion

A

Anti-thrust cushion that has higher front than back to prevent forward sliding

86
Q

Pressure relief techniques

A

Push ups
Side to side movement
Schedule for weight shifts and skin monitoring

87
Q

Medical necessity includes

A

Increased function, health, safety, user satisfaction

88
Q

Mobility-assisted equipment (MAE) documentation criteria

A

Symptoms
Related dx
History (intervention that have been tried with results)
Physical examination
Functional assessment of MRADL
Recommendation and rationale

89
Q

Medicare clients are eligible for MAE if

A

They have personal mobility deficits that impact participation in MRADL in the home

90
Q

Medicare MRADL

A

Toileting, feeding, dressing, grooming, or bathing.

91
Q

What type of cushion is often needed for patient who need accommodations for deformities of the pelvis or spine

A

Custom-contoured foam

92
Q

Transfer pelvis, heel and arm positioning

A
  • Anterior pelvic tilt
  • Heels point toward the surface to which the client is transferring
  • Push up from wheelchair armrest
93
Q

Why is it important to ensure wheelchairs have appropriate seat depth

A

Distribute body weight along entire surface

94
Q

Hip flexion less than 90

A

Causes positioning in reclined position and increases pressure on the sacral region

95
Q

Angle for SPT w/c to bed

A

Position the chair at a 0°–30° angle to the bed

96
Q

Purpose of a wheelchair cushion

A

Redistribute pressure on the sitting surface away from the ischial tuberosities and the coccyx.

97
Q

Tilt-in-space feature

A

Rotates the seat around a fixed axis, does not change the client’s position, and provides pressure relief for the buttocks

98
Q

Main objective for wheelchair seat width

A

Distribute weight over the widest possible surface while keeping the width of the chair as narrow as possible

99
Q

In what conditions can the pelvis be flexible or fixed

A

scoliosis, windswept deformity, and kyphosis, lordosis

100
Q

K0005

A

Ultra lightweight wheelchair that is fully adjustable

101
Q

K0002 code

A

Standard hemi wheelchair for clients who need lower seat height due to short stature or to enable self-propulsion using BLE

102
Q

K0007 code

A

Extra-heavy-duty for patients 300 pounds+

103
Q

K0001 code

A

Standard chair, most basic, least adjustable wheelchair, meets the minimal standard for Medicare