CMC Wheelchair Seating & Positioning 1 — Questions and Answers
Question 1: What is the primary goal of proper wheelchair seating and positioning?
- To maximize function, comfort, and prevent secondary complications (Correct answer)
- To reduce the cost of wheelchair equipment
- To standardize all wheelchair configurations
- To limit the user's range of motion
Correct answer: To maximize function, comfort, and prevent secondary complications
Proper seating and positioning maximizes the user's functional ability, prevents pressure injuries, manages postural deformities, and enhances comfort and quality of life.
Question 2: What is a pressure mapping assessment used for in wheelchair seating?
- To identify areas of high pressure that could lead to pressure injuries (Correct answer)
- To measure the weight capacity of the wheelchair
- To determine the wheelchair's turning radius
- To test the battery life of power wheelchairs
Correct answer: To identify areas of high pressure that could lead to pressure injuries
Pressure mapping uses sensor technology to visualize pressure distribution at the seating interface, helping clinicians identify high-pressure areas and select appropriate cushions.
Question 3: What does the term 'pelvic obliquity' refer to in seating assessment?
- A lateral tilt of the pelvis where one side is higher than the other (Correct answer)
- Forward tilting of the pelvis
- Rotation of the pelvis around a vertical axis
- Normal alignment of the pelvis
Correct answer: A lateral tilt of the pelvis where one side is higher than the other
Pelvic obliquity occurs when one side of the pelvis is higher than the other in the frontal plane, often requiring accommodation or correction in the seating system.
Question 4: Which cushion type is most effective for pressure redistribution in high-risk users?
- Air flotation or hybrid cushion systems (Correct answer)
- Standard foam cushions
- Rigid plastic seats without cushioning
- Wooden bench seats
Correct answer: Air flotation or hybrid cushion systems
Air flotation and hybrid cushions (combining air, foam, and gel) provide superior pressure redistribution by conforming to the user's body shape and distributing weight more evenly.
Question 5: What is the significance of seat-to-back angle in wheelchair positioning?
- It affects posture, respiratory function, and pressure distribution (Correct answer)
- It only matters for aesthetic appearance
- It has no clinical significance
- It determines the wheelchair's maximum speed
Correct answer: It affects posture, respiratory function, and pressure distribution
The seat-to-back angle significantly impacts the user's posture, respiratory capacity, ability to perform functional tasks, and pressure distribution across the seating surface.
Question 6: When should a tilt-in-space wheelchair be recommended?
- When the user cannot independently shift weight and needs passive pressure relief (Correct answer)
- When the user has no postural support needs
- Only for pediatric patients under age 5
- When the user prefers a manual wheelchair
Correct answer: When the user cannot independently shift weight and needs passive pressure relief
Tilt-in-space wheelchairs maintain the seat-to-back angle while tilting the entire seating system, providing passive pressure relief and postural support for users who cannot independently reposition.
CMC Wheelchair Seating & Positioning 1
What is the primary goal of proper wheelchair seating and positioning?