Question 1

Use of a sling seat in a wheelchair typically can cause any of the following EXCEPT:&#10;A)Posterior pelvic tilt&#10;B)Anterior pelvic tilt&#10;C)Hip adduction&#10;D)Hip internal rotation

Accepted Answer

A sling seat in a wheelchair may cause posterior pelvic tilt, hip adduction, and hip internal rotation due to the lack of support it provides. However, it would not cause anterior pelvic tilt as the sling seat would prevent the pelvis from tilting forward.

Question 2

You are about to instruct your patient in self-propulsion of his wheelchair.The ideal upper extremity start position for wheelchair self-propulsion to allow the most efficient stroke is important because self-propulsion presents a high risk of:

A)Repetitive strain injuries
B)Hip flexion contractures
C)Colles fractures
D)All of the above

A

Accepted Answer

The ideal upper extremity start position for wheelchair self-propulsion is important to prevent repetitive strain injuries, which are a common risk associated with self-propulsion. Hip flexion contractures and Colles fractures are not directly related to the start position for self-propulsion, although poor positioning during wheelchair use can contribute to these issues over time.

Question 3

Best choices in wheelchair features to prevent repetitive strain injuries with a manual self-propelled mobility base would be any of the following EXCEPT:&#10;A)Lightest chair possible&#10;B)High-quality bearings&#10;C)System that provides for good hip and trunk stability&#10;D)Back seat angle that allows for slight posterior pelvic tilt for the ready position for pushing

Accepted Answer

A slight posterior pelvic tilt in the ready position for pushing can actually increase the risk of repetitive strain injuries rather than prevent them. Proper positioning for pushing typically involves a neutral to slightly anterior pelvic tilt to facilitate optimal biomechanics and reduce strain.

Question 4

The typical wheelchair with a sling back and seat upholstery seat can promote:&#10;A)Poor sitting posture&#10;B)Posterior pelvic tile&#10;C)Hyperextended neck&#10;D)All of the above

Accepted Answer

The typical wheelchair with a sling back and seat upholstery seat can promote poor sitting posture, posterior pelvic tilt, and hyperextended neck. All of these can lead to discomfort, pain, and even pressure sores. Therefore, it is important to consider alternative wheelchair seating options that promote proper posture and alignment.

Question 5

The optimal angle that a seat belt should cross the pelvis with a seated client is:&#10;A)0&#176; to 10&#176;&#10;B)20&#176; to 30&#176;&#10;C)45&#176; to 60&#176;&#10;D)75&#176; to 90&#176;

Accepted Answer

The optimal angle for a seat belt to cross the pelvis is 45° to 60°. This angle ensures that the forces during a crash are distributed over the stronger bony structures of the pelvis, reducing the risk of injury.

Question 6

A well-planned seating system for a wheelchair will do which of the following?&#10;A)Normalize muscle tone&#10;B)Increase comfort and sitting tolerance&#10;C)Improve function of the autonomic nervous system&#10;D)All of the above

Accepted Answer

A well-planned seating system for a wheelchair will address the individual's postural needs, which can help normalize muscle tone and improve sitting tolerance. It can also provide proper support to prevent skin breakdown and improve the function of the autonomic nervous system by decreasing the risk of orthostatic hypotension. Therefore, all the options A, B, and C are correct.

Deck 32: Pta: The Prescriptive Wheelchair