- According to NDT principles, what initial step should the COTA take to prepare the client for this functional reaching task?
Answer: Guide the client to bear weight on the extended left arm while seated.
A key principle of NDT is tone inhibition through techniques like weight-bearing on the affected side. Having the client bear weight on their extended hemiplegic arm provides prolonged proprioceptive input that helps to inhibit flexor synergy and normalize tone, thus preparing the limb for more active, functional movement. A would likely increase synergy. B is a preparatory modality but not a core NDT technique for this purpose. D is a static approach, whereas NDT emphasizes dynamic handling and movement.
- What activity should the COTA implement NEXT as part of the graded motor imagery sequence?
Answer: Guiding the client through imagined movements of their right hand.
Graded motor imagery follows a specific three-stage sequence: 1) Left/right discrimination, 2) Explicit motor imagery (imagining movements), and 3) Mirror therapy. Since the client has mastered stage one, the COTA's next step is to implement stage two, which involves having the client imagine moving their affected hand without actually moving it. A and D are other potential interventions for CRPS but are not part of the graded motor imagery sequence. B (mirror therapy) is the third and final stage of the program.
- Which activity would be MOST effective for the COTA to implement to promote bilateral integration?
Answer: Drying their back with a towel using both hands.
Drying one's back with a towel requires the coordinated use of both hands working together in a reciprocal motion, which directly targets bilateral integration. The other options are unilateral activities (A, B, D) and would not effectively address the client's specific deficit in using both sides of the body together.
- What is the COTA's MOST appropriate immediate action?
Answer: Withhold the CIMT intervention and immediately notify the supervising OTR.
New and significant edema, redness, and burning pain are potential signs of a serious underlying medical issue, such as a deep vein thrombosis (DVT) or cellulitis, which would be contraindications for CIMT. The COTA's primary responsibility is client safety. Therefore, they must withhold the intervention and immediately consult with the OTR, who can then determine the appropriate course of action, which may include referral to a physician.
- Which sequence of textures should the COTA use to implement this desensitization program?
Answer: Cotton balls, then rice, then sandpaper.
A desensitization program progresses from the least irritating to the most irritating textures. The typical hierarchy starts with soft textures (cotton balls), moves to medium textures (rice, beans), and finally progresses to rough textures (sandpaper). This gradual exposure helps the nervous system accommodate and normalize its response to stimuli.
- Which activity would be MOST appropriate for the COTA to use to address the goal of improving stereognosis?
Answer: Finding a key hidden in a bowl of uncooked pasta without using vision.
Stereognosis is the ability to identify objects by touch alone, without vision. Having the client find a specific object (key) among other distracting textures (pasta) directly targets this skill. A tests pain/sharp-dull discrimination. B tests temperature sensation. D tests graphesthesia.
- Which method is the MOST appropriate for the COTA to use to facilitate therapeutic weight-bearing?
Answer: Position the client's affected hand flat on the mat and encourage leaning onto it to reach for an object.
This method facilitates active weight-bearing through a closed-chain movement, which provides proprioceptive input, promotes co-contraction of shoulder muscles for stability, and helps normalize tone. It is a functional and effective NDT-based technique. A is passive ROM, not weight-bearing. B adds resistance but does not provide the joint approximation of weight-bearing. C is an open-chain exercise that may be difficult and could increase synergistic patterns.
- Which practice schedule should the COTA implement at this stage?
Answer: Random practice, alternating between donning a shirt, pants, and socks.
In the associative stage of motor learning, random practice (practicing multiple related tasks in a varied order) is more effective than blocked practice for promoting long-term retention and the ability to generalize the skill to different contexts. Blocked practice (A) is better for the initial, cognitive stage of learning. Massed practice (C) refers to the timing of sessions, not the structure within them. Mental practice (D) is a useful adjunct but not a substitute for physical practice at this stage.
- Which activity implemented by the COTA would provide the MOST effective proprioceptive input to support this goal?
Answer: Pushing a 'crash cart' filled with weighted balls across the room.
Pushing a weighted cart is a 'heavy work' activity that provides significant proprioceptive input to the muscles and joints. This type of input helps to improve body awareness and motor planning. A provides vestibular input. B provides some proprioceptive input to the hands but not the whole body. D is a tactile discrimination activity.
- What is the COTA's BEST immediate response to this situation?
Answer: Grade the task down by providing a larger, easier-to-grasp object.
The COTA's role includes grading activities to provide the 'just-right challenge'. When a client is overly frustrated, the task is too difficult. Grading the activity down (e.g., using a larger object) allows the client to experience success, which is motivating and essential for motor learning, while still adhering to the CIMT protocol. A is premature, B is not necessary for an in-the-moment adjustment, and D does not address the core problem that the task is too hard.
- When implementing an activity that involves manipulating small objects, what is the MOST important instruction the COTA should provide to the client?
Answer: To use visual guidance to monitor hand position and prevent injury.
Without protective sensation, the client is at high risk for injury (e.g., cuts, burns, applying too much pressure). The COTA must teach the client to use vision as a compensatory strategy to monitor their hand during tasks. This is a critical component of sensory reeducation for safety. B and C could easily lead to injury. D is a preparatory method but does not address safety during the activity itself and could be dangerous if the water is too hot and the client cannot feel it.
- How would the COTA BEST implement this combined approach during a sandwich-making activity?
Answer: Position the client to bear weight on their affected forearm to stabilize a bowl while stirring with the unaffected hand.
This option effectively combines both approaches. The NDT principle is applied through weight-bearing on the affected side to normalize tone and provide stability (a preparatory and concurrent technique). This is done within the context of a meaningful, client-centered, task-oriented activity (stirring ingredients for a sandwich). A is not a task-oriented approach. B is a form of motor imagery, not NDT. D promotes learned non-use and does not incorporate the affected side.
- What is the PRIMARY role of the COTA during the activity portion of this CIMT session?
Answer: To engage the client in repetitive, task-specific training with the affected UE.
The core principle of CIMT is to force the use of the affected extremity through massed, repetitive, task-oriented practice. The COTA's primary role is to implement this by guiding and encouraging the client through these specific activities. A is incorrect because CIMT focuses on active, not passive, movement. C is incorrect as modifying long-term goals is the responsibility of the OTR. D is an important component of documentation but is not the primary therapeutic role during the activity.
- To improve the client's ability to bring a cup to their mouth, which PNF pattern should the COTA facilitate?
Answer: D1 flexion of the upper extremity.
The D1 flexion pattern for the UE involves shoulder flexion, adduction, and external rotation, which functionally mimics the movement of bringing the hand to the mouth for self-feeding. The COTA would implement this pattern to reeducate the desired motor sequence. The other patterns correspond to different functional movements (e.g., D1 extension is pushing down and away, D2 flexion is combing hair on the opposite side, D2 extension is putting on a seatbelt).
- Which strategy BEST implements this approach to address the client's freezing of gait?
Answer: Placing brightly colored tape strips on the floor and instructing the client to step over them.
Using external visual cues, such as tape strips on the floor, is a well-established task-oriented strategy to help individuals with Parkinson's disease overcome freezing of gait. The visual target provides a focal point that helps bypass the dysfunctional basal ganglia circuits. A is motor imagery, a different technique. C is a strengthening exercise but doesn't directly address gait initiation. D involves recommending equipment, which may be part of the plan, but the COTA's role here is to implement a training strategy directly.
- What type of feedback should the COTA provide to be MOST effective during this stage?
Answer: Concurrent and immediate feedback after each step of the process.
In the cognitive stage of motor learning, the learner is trying to understand the task. They benefit most from frequent, direct, and immediate feedback (concurrent or terminal) to help them understand errors and correct their performance. As the skill becomes more established, feedback should become less frequent (as in A, B, and C) to encourage internal problem-solving.
- To facilitate an effective anterior weight shift, where are the BEST key points of control for the COTA to place their hands?
Answer: On the client's shoulders and pelvis.
In NDT, key points of control are specific body parts from which movement can be effectively facilitated. For sit-to-stand, hand placement on the shoulders and pelvis allows the COTA to guide the client's center of mass forward over their base of support (the feet), which is the critical component of the transfer. While other placements might provide support, they are less effective for facilitating the overall movement pattern.
- How should the COTA set up the environment and instruct the client to begin the mirror therapy session?
Answer: Position the mirror to reflect the intact left arm and instruct the client to watch the reflection while moving the intact arm.
The correct setup for mirror therapy involves placing the mirror midsagittally so that the reflection of the intact limb appears superimposed over the perceived location of the amputated limb. The client then moves the intact limb while watching the reflection, which creates a visual illusion of the phantom limb moving without pain. A is incorrect positioning. C and D do not utilize the principle of visual feedback that is central to mirror therapy.
- What is the MOST appropriate way for the COTA to progress this mirror therapy intervention?
Answer: Introduce activities that involve grasping and releasing different objects.
Progression in motor reeducation should move from simple, isolated movements toward more complex, functional tasks. Introducing object manipulation (grasping and releasing) is the logical next step to make the therapy more occupation-based and meaningful. A increases duration but not complexity. C removes the therapeutic element of the intervention. D adds strengthening to the unaffected side, which is not the goal of mirror therapy for the affected side.
