CDE Adaptive Equipment & Vehicle Modifications 1 — Questions and Answers
Question 1: Which adaptive device attaches to the steering wheel and allows a driver to rotate it effectively using only one hand?
- Tri-pin device
- Spinner knob (Correct answer)
- Steering cuff
- Left foot accelerator
Correct answer: Spinner knob
A spinner knob attaches to the steering wheel rim and provides a gripping point that allows the driver to rotate the wheel with one hand.
Question 2: Push-pull hand controls are designed primarily to allow a driver to:
- Control horn and headlights simultaneously
- Operate the accelerator and brake using hand movements instead of foot pedals (Correct answer)
- Shift gears without using a clutch
- Activate turn signals without removing hands from the wheel
Correct answer: Operate the accelerator and brake using hand movements instead of foot pedals
Push-pull hand controls substitute for foot pedals, letting drivers with lower limb impairments operate the accelerator and brake with their hands.
Question 3: A left foot accelerator is most clinically indicated for a driver who:
- Has limited left foot range of motion
- Has a right lower limb impairment preventing safe use of the standard right-side accelerator (Correct answer)
- Prefers a more ergonomic driving position
- Has only been trained on manual transmission vehicles
Correct answer: Has a right lower limb impairment preventing safe use of the standard right-side accelerator
A left foot accelerator is indicated when the driver cannot safely operate the standard accelerator with their right foot due to a right lower limb impairment.
Question 4: Which adaptive equipment combination is typically most appropriate for a driver with C6-level tetraplegia?
- Spinner knob only
- Tri-pin hand control with a steering device (Correct answer)
- Left foot accelerator only
- Standard foot pedals with a modified seat
Correct answer: Tri-pin hand control with a steering device
At C6, the driver has wrist extension but limited hand grasp, making a tri-pin hand control and steering device appropriate to compensate for limited grip function.
Question 5: The NMEDA Quality Assurance Program (QAP) primarily ensures that:
- Government subsidies are available for adaptive equipment
- Mobility equipment dealers meet established industry quality and safety standards (Correct answer)
- Free installation is provided for veterans with service-related disabilities
- DMV offices approve all vehicle modifications before use
Correct answer: Mobility equipment dealers meet established industry quality and safety standards
NMEDA's QAP certifies that mobility equipment dealers comply with specific quality, safety, and training requirements for installing adaptive driving equipment.
Question 6: Reduced effort steering systems are most indicated for clients who present with:
- Vision impairments requiring specialized mirror adjustments
- Upper extremity weakness or limited range of motion that reduces steering force output (Correct answer)
- Lower limb amputations requiring modified foot controls
- Cognitive impairments that slow reaction time
Correct answer: Upper extremity weakness or limited range of motion that reduces steering force output
Reduced effort steering systems lower the force required to turn the steering wheel, directly compensating for upper extremity weakness or limited range of motion.
Question 7: Before recommending any adaptive driving equipment, what must a driver rehabilitation specialist document first?
- Cost estimate from a certified mobility equipment dealer
- The client's functional abilities and limitations identified through clinical evaluation (Correct answer)
- Insurance pre-authorization from the client's provider
- Vehicle make and model compatibility with desired equipment
Correct answer: The client's functional abilities and limitations identified through clinical evaluation
A thorough clinical evaluation of the client's functional abilities and limitations must be completed and documented before any adaptive equipment recommendation is made.
CDE Adaptive Equipment & Vehicle Modifications 1
Which adaptive device attaches to the steering wheel and allows a driver to rotate it effectively using only one hand?