Neurologic Impairments Flashcards
Decorticate Rigidity/Posturing
- Upper extremities are in spastic FLEXED position with internal rotation and adduction.
- Lower extremities are in spastic EXTENDED position, with internal rotation and addiction.
- Typical of damage to cerebral hemispheres.
Decerebrate Rigidity/Posturing
- Upper AND lower extremeties are in spastic EXTENSION, with internal rotation and adduction.
- Wrists and fingers flex, plantar portions of the feet flex and invert, the trunk extends, and the head retracts.
- Typical of damage to the midbrain and/or brainstem.
Ataxia
- Abnormal movement resulting from cerebellum damage
- Impaired muscle coordination
- Interventions focus on compensatory strategies for control, including weighting of body parts or use of weighted utensils or cups
Apraxia
- Inability to plan and perform purposeful movements
- May be treated with hand-over-hand exercise to repair damaged neural pathways.
- Client may also compensate by following steps depicted in pictures or written on a card.
Coma
- Severe disorder of consciousness
- Absence of responses to environmental stimuli
- No evidence of sleep-wake cycles
- No intentional movement
- Eyes do not open to stimuli or spontaneously
Vegetative State
- Onset within 1 month of TBI
- No awareness or ability to interact with self or environment
- No sustained, reproducible, voluntary, or behavioral responses to sensory stimuli
- No apparent receptive language comprehension or verbal expression
- Sleep-wake cycles of variable length
- Ability to self-regulate temperature, breathing, and circulation for survival
- Incontinence of bowel and bladder
- Variable and unpredictable preserved cranial nerve and spinal reflexes
- Condition of past and continuing disability with uncertain future
- Persistent Vegetative State = exceedingly small chance of client regaining consciousness before death
Minimally Conscious State
- Definite behavioral evidence of awareness of self, environment, or both
- Discernible, reproducible behavior in one or more of the following areas: following commands, gestural or verbal yes/no responses, intelligible verbalizations, purposeful movements.
Glasgow Coma Scale
- Traditional method to assess levels of consciousness
- Quantifies the severity of TBI and predicts outcome
- Scores range from 3 to 15:
Severe = 3 to 8
Moderate = 9 to 12
Mild = 13 to 15 - Assess three behavioral areas (eye opening, verbal responses, & motor responses)
Rancho Los Amigos Scale of Cognitive Functioning
- Descriptive measurement of awareness and cognitive function after traumatic injury
- Scored from Level I to Level X
RLA - Level I
- No response
- Is completely unresponsive to any stimuli presented
RLA - Level II
- Generalized response
- Exhibits inconsistent and non-purposeful reactions to stimuli
RLA - Level III
- Localized response
- Reacts specifically to stimuli, though inconsistently
RLA - Level IV
- Confused & agitated response
- Has heightened state of activity with severely decreased ability to process information
RLA - Level V
- Confused, inappropriate & non-agitated response
- Appears alert with fairly consistent reactions, although increased complexity of commands causes more random responses
RLA - Level VI
- Confused & appropriate response
- Exhibits goal-directed behavior but is dependent on external input for direction
RLA - Level VII
- Automatic, appropriate responses
- Behaves appropriately and is oriented to place and routine, but frequently displays shallow recall
RLA - Level VIII to X
- Purposeful and appropriate responses
- Is alert and oriented
- Able to recall and integrate past and recent events
- Each level represents a decreasing need for assistance with routine daily living skills:
VIII = Stand-by assistance (SBA)
IX = SBA on request
X = Modified Independence (Mod I)
Acute Phase of TBI
- Initial interventions for severe disorders of consciousness occur in the intensive care and acute care units of hospitals.
- Interventions involve both preventive and restorative approaches.
Interventions for Acute Phase of TBI
- Wheelchair positioning
- Bed positioning
- PROM (to prevent development of secondary impairments)
- Splinting and casting (if spasticity interferes with functional movement AND/OR soft-tissue contractures are possible)
- Sensory stimulation
- Management of agitation (e.g., behavior management strategies to avoid reinforcing inappropriate behaviors while allowing medically necessary treatments to occur)
- Family and caregiver education (so can assist with sensory regulation, positioning, & ROM needs)
Inpatient Rehabilitation Phase of TBI
- Inpatient rehabilitation settings for TBI provide intensive rehabilitation for clients who are able to demonstrate stimulus-specific responses.
- Clients in inpatient rehabilitation are generally at Rancho Level V or higher.
Interventions for Inpatient Rehabilitation Phase of TBI
- Optimize motor function (with focus on motor learning, skill acquisition& exercise, through occupation-based activities)
- Optimize visual abilities (e.g., through environmental adaptation, vision correction, & intro of compensatory strategies such as contrasting colors)
- Optimize visual-perceptual function including compensatory and rehabilitative strategies (e.g., Neglect may be treated by encouraging use of neglected side during functional activities, and environmental modifications)
- Optimize cognitive function (emphasis is on self-awareness of deficits, attention, memory and executive function through functional activities)
- Optimize voice and speech function (e.g., conversation exercises for aphasia and compensation with communication devices or pictures if gains not made)
- Restore competence in self-maintenance tasks including: dysphagia & feeding, bed mobility, wheelchair management, functional ambulation, community mobility, transfers, home management, & community reintegration
- Contribute to behavioral & emotional adaptation (focus on decreasing or mediating problem behaviors utilizing both environmental & interactive interventions)
- Support family caregivers
Post-acute Rehabilitation Phase of TBI
- As clients prepare to reenter the community, rehabilitation transitions from an inpatient setting to one of a variety of post-acute rehabilitation settings
- Possibilities include: home-based therapy, a residential program, a day treatment program, or an outpatient community reentry program
- Client’s family often need to provide long-term assistance depending on the severity of the TBI
Interventions for Post-acute Rehabilitation Phase of TBI
- Optimize cognitive function (focus on residual cognitive deficits such as memory problems & executive function deficits)
- Optimize visual and visual-perceptual function (focus on environmental adaptations & compensatory strategies)
- Restore competence in self-maintenance roles (continued focus on skills not fully acquire in inpatient rehab; emphasis on behavioral intervention with repetitive practice through errorless leaning, fading cues, and positive encouragement; homemaking tasks addressed first, then money management, shopping skills, & community mobility)
- Restore competence in leisure and social participation (e.g., social skills groups using behavior contracts, role-playing, self-reflection thru video-feedback, and role modeling)
- Restore competence in work once client is competent in self-maintenance (includes skill development for work-appropriate behaviors, and vocational rehabilitation)
- Contribute to behavioral and emotional adaptation (focus on increasing self-awareness and coping skills)
Spinal Shock
- Initial stages of SCI
- May last between 24 hours and 6 weeks
- Can result in the absence of reflexes below the level of injury
- If the injury results in paralysis and reflex activity ceases, spasticity can result
Functional ability in SCI - Level C1 to C4
- Respiratory assistance REQUIRED
- Total assistance for personal and domestic care
- Limited head and neck movement; tetraplegia
- SNS compromised (autonomic dysreflexia possible)
- No bowel or bladder control
- Mobility with power wheelchair with sip and puff possible
Functional ability in SCI - Level C5
- Respiratory assistance NOT required (low stamina, but breathing with diaphragm)
- Total assistance for personal and domestic care
- Full head and neck movement; able to raise arms and flex elbows (** Arms should be positioned with elbows extended and forearms in supination to prevent contractures **)
- SNS compromised (autonomic dysreflexia possible)
- No bowel or bladder control
- Mobility with power wheelchair with hand controls possible
Functional ability in SCI - Level C6
- Respiratory assistance NOT required (low stamina, but breathing with diaphragm)
- Moderate assistance for personal care
- Total assistance for domestic care
- Full head and neck movement; able to raise arms and flex elbows; some wrist extension (tenodesis)
- SNS compromised (autonomic dysreflexia possible)
- Little bowel or bladder control
- Mobility with power wheelchair with hand controls; manual wheelchair for short distances; may drive a vehicle with hand controls
Functional ability in SCI - Level C7
- Respiratory assistance NOT required (low stamina, but breathing with diaphragm)
- Limited assistance for personal care
- Partial assistance for heavy-duty domestic care
- Full head and neck movement; able to raise arms; flex and EXTEND elbows; wrist flexion and extension; partial finger movement
- SNS compromised (autonomic dysreflexia possible)
- Little bowel or bladder control
- Independent transfers
- Mobility with power wheelchair with hand controls; manual wheelchair for short distances; may drive a vehicle with hand controls
Functional ability in SCI - Level C8
- Respiratory assistance NOT required (low stamina, but breathing with diaphragm)
- Primarily independent in personal care
- Partial assistance for heavy-duty domestic care
- Full head and neck movement; able to raise arms; flex and extend elbows; wrist flexion and extension; finger flexion
- SNS compromised (autonomic dysreflexia possible)
- Little bowel or bladder control
- Independent transfers
- Mobility with power wheelchair with hand controls; manual wheelchair for short distances; may drive a vehicle with hand controls
Functional ability in SCI - Level T1 to T5
- Respiratory capacity and endurance may be compromised
- Independent in personal care
- Partial assistance for heavy-duty domestic care
- SNS compromised (autonomic dysreflexia possible)
- Normal upper-extremity ROM and strength
- Little bowel or bladder control
- Independent transfers
- Mobility with manual wheelchair; may drive a vehicle with hand controls
Functional ability in SCI - Level T6 to T12
- Respiratory capacity and endurance may be compromised
- Independent in personal care
- Partial assistance for heavy-duty domestic care
- NOT at risk for autonomic dysreflexia below T6
- Normal upper-extremity ROM and strength
- Little bowel or bladder control
- Independent transfers
- Mobility may be with manual wheelchair or may stand in standing frame or walk with braces; may drive a vehicle with hand controls
Functional ability in SCI - Level L1 to L5
- Normal respiratory system
- Independent in personal care
- Partial assistance for heavy-duty domestic care
- NOT at risk for autonomic dysreflexia below T6
- Normal upper-extremity ROM and strength; only partial paralysis in hips and legs
- Little bowel or bladder control
- Independent transfers
- Mobility may be with manual wheelchair or walk with braces; may drive a vehicle with hand controls
Functional ability in SCI - Level S1 to S5
- Normal respiratory system
- Independent in personal care
- Partial assistance for heavy-duty domestic care
- NOT at risk for autonomic dysreflexia below T6
- Normal upper-extremity ROM and strength; only some loss of function in hips and legs
- Little bowel or bladder control
- Independent transfers
- Likely able to walk with assistance or aids, though slowly and with difficulty; may drive a vehicle with hand controls and load wheelchair into car independently
Impairments in SCI
- Sensory loss (also leads to high risk of skin breakdown and decubitus ulcers)
- Decreased vital capacity (breathing difficulty)
- Risk of orthostatic hypotension
- Risk of autonomic dysreflexia (for SCI at T6 level and higher)
- Spasticity (can also lead to contractures without proper positioning)
- Risk of heterotopic ossification (can also be controlled through proper positioning and monitoring/maintaining ROM)
- Risk of deep vein thrombosis (warning signs include asymmetrical lower-extremity color, size and/or temperature)
- Bowel and bladder dysfunction (affected at all levels at and above S2-S5)
- Difficulties with temperature regulation
- Pain (Nociceptive = due to damage to body tissues, such as with muscle overuse; Neuropathic = nerve pain/damage)
- Fatigue
- Sexual function (SCI does NOT alter a person’s sex drive or need for intimacy; however, problems may arise from mobility and impact of functional dependence, altered body image, and other medical conditions/complications)
SCI - Acute Recovery Phase (or Acute Phase)
Involves short OT sessions limited to 15 minutes and often in the ICU. Focus of intervention is on:
- Client & family support & education
- Allowing environmental control for client (e.g., call button, bed controls)
- Maintaining normal UE ROM and positioning (including splinting if needed)
- Facilitating tenodesis grasp, if appropriate
- Ongoing evaluation of ability to sit upright and begin ADL training
- Evaluation of client’s swallowing ability if needed depending on level of injury
SCI - Acute Rehabilitation Phase (or Active Phase of Intervention)
Includes providing education and support, and helping the client find meaningful activities that restore a sense of self-efficacy and self-esteem. Focus of interventions is on:
- Continuous education throughout intervention sessions (e.g., on SCI impairments, & pressure ulcer awareness/reduction)
- Caregiver training in ROM, positioning, pressure relief, ADL assistance, equipment use, and SCI impairments (essential for successful discharge)
- Occupational performance interventions to train basic ADLs to level of desired functional independence
- Selection of and training in use of necessary equipment for ADL & IADL performance
- Physical interventions as needed depending on level of injury (i.e., mobile arm supports for C5; tenodesis splint for C6 & C7, etc.)
- Psychosocial adaptation also most prominent in this stage, with focus on developing positive coping skills, problem-solving, making care decisions, being involved in meaningful activities, and group learning.
SCI - Transition Rehabilitation Phase
- May involve outpatient OT services if the client has been unable to achieve optimal outcomes in acute rehab phase
- Focus of interventions is to maximize strength gains in the first year post-injury, as well as continued training in the use of adaptative devices and equipment, as needed
- Access to support groups and interventions that enhance community integration should also be a focus
Ideational Apraxia
- Characterized by the loss of ability to conceptualize and plan a SEQUENCE of motor actions
- Breakdown in the knowledge (IDEA) of what is to be done and how to perform specific activities.
- Also, sometimes used interchangeably with term “conceptual apraxia” which describes the loss of the ability to perceive an object’s intended purpose, so client uses tool incorrectly
Ideomotor Apraxia
- Inability to execute a MOTOR action on demand/request or imitation
- Can conceptualize the action cognitively, so can often execute spontaneous actions such as gestures and one-step tasks (i.e., waving goodbye, brushing hair)
- Intervention focuses on breaking down tasks into separate components to teach and master each individually; requires repetition
Dressing Apraxia
- Inability to motor plan how to dress UE and/or LE
Constructional Disorder/Apraxia
- Inability to recognize or assemble parts into a whole
Aphasia
Neurological language disorder
Global Aphasia
Loss of all language ability
Broca’s Aphasia
- Broken speech
- Slow, labored speech with frequent mispronunciations
- Broca’s Area is located in the FRONTAL LOBE of the dominant hemisphere (usually the LEFT) and controls speech production
Wernicke’s Aphasia
- Aka receptive aphasia
- Impaired auditory reception
- Speech may be be fluent but is often meaningless or nonsensical
- Wernicke’s Area is located in the TEMPORAL lobe of the dominant hemisphere (usually the LEFT) and controls receptive language and language comprehension.
Anomic Aphasia
Difficulty finding words
Dysarthria
Articulation disorder resulting from paralysis of the organs of speech
Visual Agnosia
Difficulty recognizing objects
CVA Impairments & Functional Limitations
- Motor dysfunction (contralateral hemiplegia or hemiparesis)
- Impairment in trunk & postural control
- Impairment in standing activity that affects weight bearing & weight shifting, etc.
- Possible communication impairment (may include speech production or reception or both)
- Cognitive and perceptual impairment
- Upper-extremity impairment (Note: Subluxation in the glenohumeral joint is a particular concern!)
- Visual impairments possible depending on site of lesion (including visual field deficits such as homonymous heminopsia and hemi-inattention or neglect)
- Risk of depression and other psychological issues (including anxiety, mania, emotional lability, and personality changes)
Learning new skills - Transfer
- The ability to take a strategy used with one task and apply that strategy to a new task.
- Example: A client with a CVA is taught to dress the weaker side first when donning a button-down shirt. The client then initiates putting the weaker lower extremity into the pant leg first. The client is demonstrating transfer, by using the strategy for donning a shirt and transferring it to donning pants.
Learning new skills - Generalization
- Generalization occurs when clients transfer a skill learned in one context to another context.
- Example: A client dresses themselves at home in the same way they did in their hospital room.