NBCOT Registered Occupational Therapists (OTR) Quiz: Seating And Mobility
20 questions · exam conditions
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Seating And MobilityQuestion 1 of 20

An OTR is working with a young adult who has bilateral shoulder disarticulation and bilateral hip disarticulation as a result of a congenital condition. The client has excellent head, neck, and trunk control, and normal cognitive function. The goal is to provide independent powered mobility.

What is the MOST appropriate and conventional access method for controlling a power wheelchair for this client?

A proportional mini-joystick controlled by the chin or mouth (sip-and-puff).
An eye-gaze control system integrated with the wheelchair's drive module.
A single-switch scanning system with the switch mounted on the headrest.
A torso-activated control system that uses trunk movements for steering.
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NBCOT Registered Occupational Therapists (OTR) Quiz

NBCOT Registered Occupational Therapists (OTR) Quiz: Seating And Mobility

Practice Seating And Mobility in NBCOT Registered Occupational Therapists (OTR) with focused quiz questions that help you check what you know, review explanations, and build confidence with test-style prompts.

What this quiz covers

This quiz focuses on Seating And Mobility, giving you a quick way to practice the rules, question types, and explanations that matter most for NBCOT Registered Occupational Therapists (OTR).

How to use this quiz

Try each quiz question before looking at the correct answer. Use the explanations to review missed ideas, then come back to similar questions until the pattern feels familiar.

All questions

Question 1

An OTR is working with a young adult who has bilateral shoulder disarticulation and bilateral hip disarticulation as a result of a congenital condition. The client has excellent head, neck, and trunk control, and normal cognitive function. The goal is to provide independent powered mobility.

What is the MOST appropriate and conventional access method for controlling a power wheelchair for this client?

  1. A proportional mini-joystick controlled by the chin or mouth (sip-and-puff). (correct answer)
  2. An eye-gaze control system integrated with the wheelchair's drive module.
  3. A single-switch scanning system with the switch mounted on the headrest.
  4. A torso-activated control system that uses trunk movements for steering.
Explanation: When evaluating wheelchair access methods for clients with severe limb loss, you need to consider what body parts retain function and can provide reliable, precise control. This client has excellent head, neck, and trunk control with normal cognition - key factors that guide your selection. Option A is correct because a chin or mouth-controlled proportional mini-joystick leverages the client's intact head and neck control. These systems provide proportional control, meaning the speed and direction correspond directly to how far and in which direction the joystick is moved. This offers intuitive, precise navigation that matches natural movement patterns. Chin controls are particularly effective because they don't interfere with speech or eating activities. Option B (eye-gaze systems) are typically reserved for clients who lack adequate head/neck control, such as those with high-level spinal cord injuries or ALS. While functional, they're more complex, expensive, and unnecessary when simpler alternatives work well. Option C (single-switch scanning) is inefficient and slow. The user must wait for the system to cycle through directional options before selecting, making navigation tedious. This method is usually for clients with extremely limited motor control. Option D (torso-activated controls) wouldn't work effectively for someone with hip disarticulation, as the biomechanics of trunk movement are compromised without the stable pelvis and lower extremity foundation needed for controlled trunk shifts. Remember: Always match the access method to the client's highest level of reliable motor control. Use the simplest, most intuitive system that provides adequate function - don't over-complicate when basic solutions work well.

Question 2

A client with advanced multiple sclerosis requires a power wheelchair for all mobility. The client lives in a small, 100-year-old apartment building with narrow hallways (32 inches wide) and a compact bathroom. The client also wants to be able to navigate uneven city sidewalks to visit a nearby park.

Based on the client's environmental needs, which power wheelchair drive-wheel configuration is the MOST appropriate recommendation?

  1. A front-wheel drive configuration for its superior ability to climb obstacles like sidewalk curbs.
  2. A rear-wheel drive configuration due to its intuitive driving controls and high-speed stability outdoors.
  3. A heavy-duty bariatric model with enhanced suspension to provide a smooth ride over uneven terrain.
  4. A mid-wheel drive configuration to provide the smallest turning radius for indoor maneuverability. (correct answer)
Explanation: The correct answer is D. A mid-wheel drive power wheelchair has a turning radius that is approximately the length of its own wheelbase, making it the most maneuverable option for tight indoor spaces like narrow hallways and small bathrooms. It also offers good stability outdoors because all six wheels remain on the ground, making it a versatile choice for the client's mixed environment. Rationale for Distractors: A: While front-wheel drive is good at climbing obstacles, its turning radius is larger than a mid-wheel drive, making it less suitable for the client's tight indoor environment. B: Rear-wheel drive has the largest turning radius, which would make navigating the client's apartment extremely difficult, if not impossible. C: A bariatric model is not indicated by the scenario. While suspension is beneficial, the drive-wheel configuration and resulting turning radius are the critical factors for accessibility in the client's home.

Question 3

An adolescent client with dyskinetic (athetoid) cerebral palsy exhibits strong, intermittent extensor thrusts and choreoathetoid movements of the trunk and extremities. A primary goal of the seating intervention is to improve head stability to allow for consistent use of an eye-gaze communication device.

Which seating system configuration would be MOST effective in managing the client's movement patterns to achieve the stated goal?

  1. A rigid planar seating system with a padded chest harness and lap belt to firmly block involuntary movements.
  2. A custom-molded, foam-in-place system designed to provide total surface contact and limit extraneous motion.
  3. A contoured seating system with deep lateral trunk supports and a dynamic backrest that moves with the client's extensions. (correct answer)
  4. A tilt-in-space wheelchair maintained at a static 45-degree posterior tilt to use gravity to enhance head control.
Explanation: The correct answer is C. For athetoid movements and extensor thrust, attempting to block the movement with a rigid system often increases tone and agitation. A dynamic backrest absorbs the force of the extensor thrust, allows the movement to occur in a controlled range, and then assists the client back to an upright position. This, combined with proximal support from lateral trunk supports, provides stability without fighting the client's movements, thereby improving head control. Rationale for Distractors: A: A rigid system that blocks movement will likely increase the client's tone and could lead to injury or equipment damage. It is an outdated approach to managing hypertonicity. B: A foam-in-place system can be too restrictive, lead to heat retention, and does not effectively manage the dynamic forces of extensor thrusts. D: While tilt can help with head position, a static tilt does not address the dynamic nature of the extensor thrusts. The client would still thrust against the fixed back, potentially causing shear forces and discomfort.

Question 4

An OTR is evaluating a new wheelchair for an 85-year-old client who has significant lower extremity edema secondary to congestive heart failure (CHF). The physician's order requests elevating leg rests (ELRs) to assist with edema management. During the physical exam, the OTR finds that the client has bilateral hamstring contractures, limiting passive knee extension to 60 degrees when the hip is flexed to 90 degrees.

What is the MOST significant clinical consequence of using ELRs with this client?

  1. The ELRs will be ineffective at reducing edema unless the client is also in a reclined position.
  2. The client will be pulled into a posterior pelvic tilt, increasing pressure on the sacrum and coccyx. (correct answer)
  3. The overall length of the wheelchair will be increased, creating a hazard for indoor mobility.
  4. The client's center of gravity will shift, making the wheelchair more prone to forward tipping.
Explanation: The correct answer is B. Tight hamstrings cross both the hip and knee joints. When the client is seated with hips at 90 degrees and the ELRs are used to extend the knee, the tight hamstrings will pull on their origin at the ischial tuberosity. This tension pulls the pelvis into a posterior tilt, causing the client to slump into a sacral sitting posture. This is a highly undesirable position that compromises posture, stability, and significantly increases the risk of pressure injury over the sacrum. Rationale for Distractors: A: While recline can help, the primary and most dangerous consequence is postural, not related to the efficacy of edema reduction. C: Increased length is a practical problem, but it is not as clinically significant as the risk of a pressure injury from poor positioning. D: Elevating leg rests shifts the center of gravity forward, which actually increases stability and prevents backward tipping, not the other way around.

Question 5

A client with a T12 spinal cord injury has full sensation in the buttocks and perianal area. They report developing a deep, aching pain in their ischial regions after sitting for more than 30 minutes. They are an active user with excellent trunk balance and transfer skills. A pressure map evaluation confirms high peak pressures under the ischial tuberosities but shows no redness or signs of skin breakdown.

Given that the primary complaint is pain rather than skin breakdown risk, which cushion is the BEST initial choice?

  1. A high-profile, multi-cell air cushion to provide maximum offloading.
  2. A viscoelastic foam cushion with a pre-contoured, firm positioning base. (correct answer)
  3. A honeycomb polymer matrix cushion to improve airflow and reduce heat.
  4. A basic, 2-inch solid gel overlay placed on top of the existing sling seat.
Explanation: The correct answer is B. Viscoelastic foam (memory foam) has excellent immersion and envelopment properties, which are ideal for distributing pressure evenly and reducing the peak pressures that are causing the client's pain. Combining this with a firm, contoured base provides the pelvic stability an active user needs for function and transfers. Since sensation is intact and the primary issue is pain, this offers a better balance of comfort and stability than a less stable air cushion. Rationale for Distractors: A: A high-profile air cushion is the highest level of pressure relief, typically for insensate clients at extreme risk of breakdown. It may feel unstable to an active user and is likely an over-prescription for pain with intact sensation. C: A honeycomb cushion's main advantage is heat and moisture management (microclimate), which is not the stated problem. Its pressure distribution is generally considered good but often not as effective as high-quality foam or air for specific offloading. D: A basic gel overlay is a low-level intervention unlikely to be sufficient to resolve pain caused by documented high peak pressures.

Question 6

An OTR is evaluating a client with C6 tetraplegia who is proficient with independent sliding board transfers to and from a manual wheelchair. The client has good trunk control but a history of a stage 1 pressure injury on the right ischial tuberosity, which has since resolved. The client's primary goal is to maximize functional independence while minimizing the risk of skin breakdown.

Which wheelchair cushion is the MOST appropriate recommendation to balance the client's functional mobility needs with pressure management requirements?

  1. A high-profile, multi-cell air cushion to provide maximum pressure redistribution over the bony prominences.
  2. A solid gel cushion with a deep contoured base to enhance pelvic stability during transfers and reaching tasks.
  3. A low-profile, multi-cell air cushion integrated into a firm, pre-contoured foam base for positioning. (correct answer)
  4. A honeycomb matrix cushion with a breathable cover to promote airflow and manage skin microclimate.
Explanation: The correct answer is C. A low-profile air cushion provides excellent pressure redistribution necessary for a client with a history of pressure injury and insensate skin. The firm foam base provides essential stability for safe and efficient sliding board transfers, which could be compromised by a high-profile, less stable cushion. This option best balances the competing needs for skin protection and functional stability. Rationale for Distractors: A: A high-profile air cushion, while offering maximal pressure relief, creates an unstable surface that can impede transfers and would increase the seat-to-floor height, making transfers more difficult. B: A solid gel cushion provides good stability but offers less effective pressure redistribution compared to air, making it a riskier choice for a client with a history of skin breakdown. D: A honeycomb cushion is excellent for managing microclimate (heat/moisture) but does not offer the same level of pressure redistribution as a multi-cell air cushion, which is critical given the client's history.

Question 7

A 48-year-old client diagnosed with Amyotrophic Lateral Sclerosis (ALS) is currently ambulatory with a walker but experiences significant fatigue. The client and family want to select a single wheelchair that can be adapted over time to meet the predictable progression of the disease, including increasing weakness, need for pressure relief, and potential respiratory support.

Which wheelchair selection BEST represents a long-term, adaptable solution for this client?

  1. A Group 3 power wheelchair with full power seating functions and ventilator tray ordered immediately.
  2. A scooter-style mobility device for community use now, with plans to order a power chair later.
  3. An ultra-lightweight manual wheelchair with a backrest and frame capable of mounting a tilt-in-space system and power-assist wheels. (correct answer)
  4. A standard K0004 lightweight manual wheelchair to conserve energy, transitioning to a power chair when ambulation ceases.
Explanation: The correct answer is C. This option provides a solution that evolves with the client. Initially, the ultra-lightweight chair can be used for energy conservation. As weakness progresses, power-assist wheels can be added to maintain some level of independent manual propulsion. As postural and pressure needs increase, the adaptable frame allows for the addition of a power tilt-in-space seating system, effectively converting the manual chair into a highly functional power chair. This single-system approach is cost-effective and client-centered. Rationale for Distractors: A: Ordering a full Group 3 power chair immediately is premature, may not be approved by insurance, and could hasten deconditioning. B: A scooter lacks the postural support and adaptability for alternative controls and seating functions that will be essential as ALS progresses. D: A standard lightweight chair is not designed for the level of modification (e.g., adding power tilt) required for advanced ALS, necessitating the purchase of a completely new system later on.

Question 8

An OTR is evaluating a 45-year-old client with a complete T4 spinal cord injury for a new wheelchair cushion. The client has a history of a Stage 2 pressure injury over the right ischial tuberosity that has recently healed. The client is very active and independently performs pressure reliefs and transfers.

Which wheelchair cushion is MOST appropriate to recommend for this client?

  1. A solid foam cushion contoured for basic positioning.
  2. An air-filled, multi-celled cushion that allows for custom inflation. (correct answer)
  3. A gel-fluid combination cushion with a firm positioning base.
  4. A simple honeycomb matrix cushion for basic comfort and air circulation.
Explanation: An air-filled, multi-celled cushion provides the highest level of pressure redistribution by immersing the pelvis and conforming to the client's shape. Given the client's history of a pressure injury and high-risk diagnosis (complete SCI), maximizing pressure relief is the top priority. This type of cushion is the gold standard for skin protection in this population.

Question 9

An OTR is completing a seating assessment for a 7-year-old child with spastic quadriplegic cerebral palsy. The child presents with a flexible pelvic obliquity, with the right side of the pelvis positioned lower than the left. The child spends most of their day in a wheelchair.

What is the PRIMARY seating intervention to address the child's pelvic obliquity?

  1. Place a foam wedge under the left ischial tuberosity.
  2. Position a firm cushion build-up under the right ischial tuberosity. (correct answer)
  3. Install bilateral thoracic lateral supports to align the trunk.
  4. Use a contoured backrest with increased lumbar support.
Explanation: For a flexible pelvic obliquity, the goal is to correct the posture by bringing the pelvis to a level position. This is achieved by placing a firm cushion or build-up under the low side (the right ischial tuberosity in this case) to lift it. Intervening at the pelvis is the foundation of postural support.

Question 10

An OTR is fitting a manual wheelchair for an active 28-year-old with T10 paraplegia. The client reports significant shoulder pain and fatigue after propelling for short distances in their current, poorly fitted wheelchair. The OTR observes that the client's elbow is almost fully extended at the top of the push stroke.

Which adjustment to the new ultra-lightweight wheelchair would BEST address the client's shoulder pain and propulsion efficiency?

  1. Move the rear wheel axle forward to a more anterior position. (correct answer)
  2. Increase the rear seat-to-floor height to create more seat slope or 'dump'.
  3. Select a smaller diameter main wheel to reduce the reach required.
  4. Order a higher backrest to provide increased trunk stability during propulsion.
Explanation: Moving the rear axle forward improves the biomechanics of propulsion by allowing for a longer, more efficient push stroke with less shoulder strain. It places the user's center of gravity over the axle, making the chair easier to push. The ideal elbow flexion at the top of the pushrim is 100-120 degrees, which an anterior axle position helps achieve.

Question 11

An 80-year-old client with severe congestive heart failure (CHF) and generalized weakness requires a wheelchair for all mobility. The client is at high risk for skin breakdown and cannot independently shift their weight. Caregivers report difficulty repositioning the client throughout the day.

Which wheelchair feature would be MOST beneficial for pressure relief and caregiver assistance for this client?

  1. A manual wheelchair with a recline feature.
  2. A power wheelchair with a seat elevator.
  3. A manual wheelchair with a tilt-in-space feature. (correct answer)
  4. A standard lightweight wheelchair with a pressure-relief cushion.
Explanation: A tilt-in-space feature allows the entire seating system to be tilted backward while maintaining the client's hip, knee, and ankle angles. This is the most effective method for providing pressure relief for a dependent user, as it shifts weight from the seating surface to the backrest. It also helps manage posture with less risk of shear forces compared to a recline feature.

Question 12

An OTR is measuring a client for a new custom manual wheelchair. To determine the correct seat depth, the therapist measures from the client's posterior buttock, along the lateral thigh, to the popliteal fossa.

How should the therapist use this measurement to determine the final seat depth specification?

  1. Use the exact measurement to provide maximum thigh support.
  2. Add 2 inches to the measurement to allow for position changes.
  3. Subtract 1-2 inches from the measurement. (correct answer)
  4. Divide the measurement by two and add 3 inches.
Explanation: The standard procedure for determining seat depth is to measure from the posterior buttock to the popliteal fossa and then subtract 1-2 inches. This space prevents the front edge of the seat from rubbing against the back of the knee or compressing the popliteal artery and nerves, which could lead to skin breakdown and circulation issues.

Question 13

A client with multiple sclerosis (MS) experiences significant fatigue that worsens throughout the day. They can walk short distances inside their home but require a wheelchair for community outings. They drive a sedan and live with their spouse, who is able to assist with mobility equipment.

Which type of mobility device is the MOST appropriate recommendation for this client's community mobility needs?

  1. A power scooter that can be disassembled for transport.
  2. A standard, heavy-duty manual wheelchair.
  3. An ultra-lightweight rigid frame manual wheelchair. (correct answer)
  4. A Group 2 power wheelchair with a captain's seat.
Explanation: An ultra-lightweight manual wheelchair is the best option. It is much easier to propel than a standard wheelchair, which helps conserve the client's limited energy. It is also lightweight and easier for the spouse to load into a car. A power scooter or power chair would be too difficult to transport in a sedan and may be more than the client currently needs.

Question 14

A client is being discharged from the hospital following a total hip arthroplasty (posterior approach). The client will be non-weight-bearing on the operated leg for 6 weeks and has been instructed to observe hip precautions, including no hip flexion beyond 90 degrees. The client's home toilet is a standard height model that requires significant hip flexion to sit safely.

What piece of adaptive equipment is ESSENTIAL for this client to maintain hip precautions during toileting?

  1. A sliding board for transfers.
  2. A drop-arm commode.
  3. A raised toilet seat. (correct answer)
  4. A bedside commode with a removable pail.
Explanation: A raised toilet seat increases the toilet height, reducing the degree of hip flexion required when sitting down and standing up. This helps the client maintain the 90-degree hip flexion restriction following posterior approach total hip arthroplasty, reducing dislocation risk. The other options do not address the hip flexion limitation issue.

Question 15

A client who is a full-time wheelchair user is planning an international flight. The client has a custom power wheelchair with several power seat functions. The family asks the OTR for advice on how to ensure the wheelchair is transported safely.

What is the MOST important recommendation the OTR can provide?

  1. Advise the client to rent a wheelchair at their destination to avoid damage.
  2. Provide detailed, written instructions for the airline baggage handlers on how to operate and secure the chair. (correct answer)
  3. Recommend removing the battery and carrying it into the cabin.
  4. Suggest purchasing a transit tie-down system before the flight.
Explanation: Custom power wheelchairs are complex and easily damaged if handled incorrectly. The most effective strategy is to provide clear, step-by-step instructions for the specific wheelchair model. This should include how to disengage the motors for manual pushing, where to secure the chair, and how to handle sensitive electronics. This proactive communication can significantly reduce the risk of damage.

Question 16

An OTR is selecting a mobility device for a 72-year-old client with moderate Parkinson's disease. The client demonstrates a festinating gait and has difficulty initiating steps. The client's primary goal is to walk safely in their home.

Which type of walker would be MOST beneficial for this client?

  1. A standard pickup walker.
  2. A two-wheeled walker with rear glides.
  3. A U-shaped walker with hand brakes and visual cues. (correct answer)
  4. A four-wheeled rollator walker with a seat.
Explanation: A U-shaped walker (also known as a reverse walker) is positioned behind the user, promoting a more upright posture and reducing the risk of forward falls common with festination. Models designed for Parkinson's disease often include features like hand brakes for control and laser lines or other visual cues projected on the floor to help overcome freezing of gait and initiate steps.

Question 17

A bariatric client weighing 450 lbs requires a wheelchair for mobility. The client has significant soft tissue redundancy, leading to a much wider hip measurement when seated compared to when supine.

When determining the appropriate seat width for this client's wheelchair, what is the MOST critical consideration?

  1. The wheelchair must be narrow enough to fit through standard doorways.
  2. The measurement should be taken in the seated position to accommodate tissue spread. (correct answer)
  3. The seat upholstery should be extra firm to prevent sagging.
  4. The measurement should be taken in supine and averaged with the seated measurement.
Explanation: For bariatric clients, it is crucial to measure their hip width in their typical seated posture. Soft tissue spreads and requires more space when seated. Measuring in supine would result in a seat that is too narrow, leading to excessive pressure on the trochanters and skin breakdown. The chair must be fitted to the client's seated dimensions.

Question 18

An OTR is providing education to the family of a client who has just received a new power wheelchair with tilt and recline functions. The client is non-verbal and completely dependent for all care, including weight shifts.

What is the MOST important instruction to provide to the family regarding the use of the power seating functions?

  1. Only use the recline function, as it is easier to operate than the tilt.
  2. Alternate between full tilt and full recline every 4 hours during the day.
  3. Perform a full pressure-relieving tilt for 2-5 minutes at least every 30-60 minutes. (correct answer)
  4. Engage the tilt function only when the client appears uncomfortable.
Explanation: The primary purpose of power tilt for a dependent user is scheduled, frequent pressure relief to prevent skin breakdown. Best practice guidelines recommend performing a significant weight shift (achieved through a full tilt) for a short duration at regular intervals. Waiting for signs of discomfort is too late, as tissue damage can occur without pain.

Question 19

A client with athetoid cerebral palsy exhibits frequent, involuntary extensor thrusting patterns while in their wheelchair. This causes their pelvis to slide forward on the cushion. The current seating system has a 2-point lap belt.

Which piece of equipment should be added to the seating system to BEST manage the client's extensor thrusts and maintain pelvic position?

  1. A chest harness to hold the upper body back.
  2. A 4-point pelvic positioning belt placed at a 45-degree angle. (correct answer)
  3. A foam pommel placed between the client's knees.
  4. A solid seat insert to create a firmer base of support.
Explanation: A 4-point pelvic positioning belt provides superior stability for the pelvis compared to a 2-point belt. Angling it at 45 degrees over the anterior superior iliac spine (ASIS) helps to anchor the pelvis back into the seat, effectively blocking the forward sliding that occurs during an extensor thrust. This addresses the root cause of the positioning problem at the pelvis.

Question 20

A client with quadriplegia secondary to a C5 spinal cord injury is unable to perform independent pressure relief. The client's current wheelchair has a recline feature, but no tilt. The client's caregivers have noticed redness over the sacrum that does not blanch.

What is the primary concern with using only the recline feature for pressure relief for this client?

  1. Reclining can cause orthostatic hypotension.
  2. The recline mechanism is prone to breaking.
  3. Reclining the backrest creates shear forces on the sacrum. (correct answer)
  4. The recline feature does not shift weight off the buttocks effectively.
Explanation: When a backrest is reclined, the client's torso slides down, creating significant shear forces between the skin and the support surfaces. This is particularly pronounced over the sacrum and coccyx. Shear is a major contributing factor to the development of pressure injuries, and its presence makes recline a less desirable option for primary pressure relief compared to tilt-in-space.