actual IRAT 7

Traumatic Brain Injury (TBI) vs. Nontraumatic Acquired Brain Injury

TBI is an alteration in brain function or pathology caused by an external mechanical force, often involving loss of consciousness, amnesia, or skull fracture. Nontraumatic acquired brain injury results from internal mechanisms such as anoxia, tumors, infections, toxins, or vascular accidents without external mechanical impact.

Leading Causes of TBI by Population

Falls are the leading cause overall (~48%) and predominate in adults aged 65 and older. Motor vehicle accidents are prominent in ages 5–24, assault is a leading cause in children from birth to 4 years, and blast injuries predominate among active-duty military in war zones.

Primary vs. Secondary Brain Injury

Primary injury occurs at impact from mechanical damage to brain tissue, blood vessels, and axons (prevented via helmets, seat belts). Secondary injury develops post-trauma via hypoxia, hypotension, cerebral edema, increased intracranial pressure, and decreased perfusion (managed medically from scene through rehab).

Focal Brain Injury vs. Diffuse Axonal Injury (DAI)

Focal injury involves localized damage from direct impact or contact with the skull, commonly affecting inferior/dorsolateral frontal and anterior/medial temporal regions. DAI results from acceleration/deceleration shearing forces damaging axons across multiple brain regions, often causing prolonged coma.

Coup vs. Contrecoup Injury

Coup injury occurs at the direct site of impact. Contrecoup injury occurs at an indirect site opposite the impact when the moving brain rebounds against the inner skull. Both can occur during the same trauma event.

Epidural vs. Subdural Hematomas

An epidural hematoma is bleeding between the skull and dura mater, typically arterial, linked to skull fractures, and can feature a lucid interval before rapid decline. A subdural hematoma is bleeding beneath the dura from torn bridging veins, classified as acute (

Concussion vs. Chronic Traumatic Encephalopathy (CTE)

A concussion is a TBI from a blow or rapid head movement causing transient symptoms (headache, dizziness, cognitive deficits) without requiring loss of consciousness. CTE is a progressive neurodegenerative condition from repeated head impacts that can only be definitively diagnosed postmortem.

Critical Physiological Thresholds to Prevent Secondary TBI

Immediate correction of hypotension (systolic BP $< 90\,\text{mm Hg}$) and hypoxia ($\text{SpO}_2 < 90\%$, $\text{PaO}_2 \approx 60\,\text{mm Hg}$, apnea, or cyanosis) is required to ensure perfusion. In severe TBI, intracranial pressure (ICP) monitoring is initiated, with treatment targeted when ICP exceeds $\approx 20\text{--}22\,\text{mm Hg}$.

Medical Interventions for Elevated Intracranial Pressure (ICP)

Interventions include mannitol, high-dose barbiturates, ventriculostomy (CSF drainage), and decompressive craniectomy. Steroids are not recommended for reducing ICP in TBI. Monitoring is indicated for severe injuries (GCS 3–8).

Classification of Post-Traumatic Seizures

Immediate seizures occur within the first 24 hours. Early seizures occur within 1–7 days (prevented with prophylactic phenytoin or carbamazepine). Late seizures occur after day 7, carry a high recurrence risk, and require medical management (prophylaxis during week 1 does not prevent them).

Prognostic Factors Following TBI

Prognosis depends on injury severity, age, preinjury health, mechanism, substance use, psychosocial functioning, and support systems. An individual's observed rate of functional recovery over time is often more predictive than any single isolated baseline variable.

Post-Traumatic Amnesia (PTA) as a Prognostic Factor

PTA is the duration between injury and the recovery of continuous memory for ongoing daily events. It is one of the strongest objective predictors of functional outcome; PTA lasting 4 weeks or longer strongly correlates with significant long-term disability.

Long-Term Impact of Psychosocial Difficulties vs. Physical Impairments in TBI

Behavioral changes, emotional dysregulation, impaired judgment, and social role loss often persist and are reported by families and clients as more disabling $\ge 1$ year post-injury than physical deficits, necessitating an OT focus on roles, relationships, and identity.

Glasgow Coma Scale (GCS) Components and Scoring Range

Evaluates eye opening (1–4 points), best verbal response (1–5 points), and best motor response (1–6 points). Total scores range from 3 to 15, with lower scores indicating deeper impairment of consciousness (severe: 3–8, moderate: 9–12, mild: 13–15).

Six Motor Response Levels of the GCS

6: Follows simple commands; 5: Localizes to pain; 4: Withdraws from pain; 3: Abnormal flexion (decorticate posturing); 2: Abnormal extension (decerebrate posturing); 1: No motor response. Scores of 5 or 6 indicate emergence from coma or vegetative state.

Coma vs. Vegetative State vs. Minimally Conscious State (MCS)

Coma: Absence of both wakefulness and awareness, even with maximal stimulation. Vegetative state: Presence of wakefulness and sleep-wake cycles without awareness or sustained purposeful behaviors. Minimally conscious state: Inconsistent but reproducible behavioral evidence of conscious awareness.

Diagnostic Behaviors for Minimally Conscious State (MCS)

Requires clearly reproducible evidence of at least one of four behaviors: following simple commands; gestural/verbal yes/no responses (accuracy not required); intelligible verbalizations; or purposeful motor/affective responses to relevant environmental stimuli.

Retrograde vs. Anterograde Amnesia

Retrograde amnesia is the loss of memory for events occurring prior to the injury. Anterograde amnesia is the inability to consolidate new memories after the injury, which critically interferes with learning new routines, precautions, and therapy carryover.

Post-Traumatic Amnesia (PTA) Duration Classifications

Very mild: $< 5\,\text{minutes}$; Mild: $5\text{--}60\,\text{minutes}$; Moderate: $1\text{--}24\,\text{hours}$; Severe: $1\text{--}7\,\text{days}$; Very severe: $1\text{--}4\,\text{weeks}$; Extremely severe: $> 4\,\text{weeks}$.

Assessment Tools for PTA and Consciousness

PTA assessments include the Galveston Orientation and Amnesia Test (GOAT) and Orientation Log (O-Log). Consciousness and recovery tools include the JFK Coma Recovery Scale–Revised (CRS-R), Wessex Head Injury Matrix (WHIM), and Coma/Near-Coma Scale.

Decorticate vs. Decerebrate Rigidity

Decorticate rigidity presents with UE flexion and LE extension/internal rotation, indicating injury to cerebral hemispheres or internal capsule. Decerebrate rigidity presents with UE and LE extension, adduction, and pronation with trunk/neck extension, indicating brainstem damage and poorer prognosis.

Rigidity vs. Spasticity vs. Flaccidity

Rigidity: Non-velocity-dependent increased resistance throughout passive ROM. Spasticity: Velocity-dependent increased resistance to passive stretch (faster stretch produces greater resistance). Flaccidity: Abnormally decreased muscle tone with minimal or absent resistance to passive movement.

Modified Ashworth Scale (MAS) Scoring Criteria

0: Normal tone; 1: Slight increase with catch-and-release or minimal end-range resistance; 1+: Catch followed by minimal resistance through $< 50\%$ of ROM; 2: Marked increase through most of ROM but easily moved; 3: Considerable increase, passive movement difficult; 4: Affected part rigid in flexion or extension.

Heterotopic Ossification (HO) in TBI and OT Implications

Formation of mature lamellar bone in periarticular soft tissue (commonly hips/elbows) presenting as progressive ROM loss and a hard end-feel. The OT must not mistake this for simple spasticity, avoid aggressive passive stretching, and immediately notify the medical team.

Rancho Level I: No Response

The client shows complete absence of observable responses to visual, auditory, tactile, or painful stimuli. OT priorities include positioning, PROM, skin integrity management, contracture prevention, family education, and monitoring for emerging responsiveness.

Rancho Level II: Generalized Response

The client responds inconsistently and nonpurposefully to stimuli, often producing identical gross motor or autonomic responses regardless of stimulus type. OT provides controlled, meaningful sensory input, allows latency for delayed responses, and avoids overstimulation.

Rancho Level III: Localized Response

The client shows specific but inconsistent responses directly related to the stimulus (e.g., turning toward sound, blinking at light, pulling tubes). OT introduces simple one-step commands, familiar objects, and begins establishing a reliable yes/no communication system.

Rancho Level IV: Confused, Agitated

Characterized by heightened activity, agitation, severe confusion, emotional lability, poor attention, and internal disorientation. OT priority is safety via a quiet, low-stimulation environment, short calm instructions, consistent staff, and 1:1 supervision without demanding complex tasks.

Rancho Level V: Confused, Inappropriate, Nonagitated

The client follows simple commands more consistently but is highly distractible, lacks goal orientation, exhibits severe memory deficits, and confabulates. Internal agitation is diminished. OT utilizes familiar, overlearned activities, structured routines, and wandering supervision.

Rancho Level VI: Confused, Appropriate

The client demonstrates goal-directed behavior with external cues and shows carryover for relearned familiar self-care tasks, but new learning remains limited. Lacks safety awareness. OT uses consistent schedules, memory aids, structured repetition, and familiar ADLs.

Rancho Level VII: Automatic, Appropriate

The client performs daily routines automatically in familiar settings in a robot-like manner, but exhibits shallow recall, impaired insight, poor judgment, and reduced safety awareness. Independent driving is unsafe due to inability to problem-solve novel hazards.

Rancho Level VIII: Purposeful, Appropriate

Consistently oriented, integrates past and recent events, shows carryover of new learning, and functions independently in familiar tasks without supervision. May show subtle deficits under high stress. OT addresses community reintegration, driving evaluations, and higher-level IADLs.

Rancho Level IX: Purposeful, Appropriate (Stand-by Assistance on Request)

The client can shift between tasks for up to 2 hours, use assistive memory devices, and recognize impairments, but requires stand-by assistance to anticipate problems or adjust to unexpected demands. OT emphasizes self-monitoring and coping strategies in community/work roles.

Rancho Level X: Purposeful, Appropriate (Modified Independent)

The client handles multiple tasks simultaneously, anticipates problems, and independently creates and utilizes compensatory strategies, though requiring extra time or breaks. Periodic episodes of low frustration tolerance or irritability may persist.

Clinical Distinction: Rancho Level II vs. Level III

Level II displays generalized, nonspecific, nonpurposeful responses (same reaction regardless of stimulus type). Level III displays localized, stimulus-specific responses (e.g., turning eyes/head directly to sound or following a moving object).

Clinical Distinction: Rancho Level V vs. Level VI

Level V exhibits non-goal-directed behavior, severe confusion, and zero carryover for learning. Level VI displays goal-directed behavior with cues, awareness of basic needs, and emerging carryover for relearned familiar tasks.

Clinical Distinction: Rancho Level VII vs. Level VIII

Level VII operates automatically in familiar routines but has poor insight, impaired judgment, and requires supervision for safety. Level VIII demonstrates carryover of new learning, is oriented, and functions without supervision in routine tasks.

OT Management of a Tube-Pulling, Agitated Client (Rancho Level IV)

Prioritize physical safety and tube protection, decrease environmental stimulation (dim lights, quiet room), communicate in short calm sentences, assess physical comfort/pain, and provide 1:1 supervision rather than attempting complex ADL retraining or lengthy explanations.

Clinical Scenario: Automatic Grooming with Insistence on Driving

Characteristic of Rancho Level VII (Automatic, Appropriate). The client performs overlearned basic ADLs automatically but displays severe lack of insight and safety judgment. Driving requires comprehensive off- and on-road evaluation and cannot be cleared based on basic ADL performance.

Linearity and Progression of Rancho Los Amigos Levels

Recovery is variable and non-linear; individuals do not necessarily progress sequentially through every level. A client may plateau at any stage, skip stages (such as bypassing Level IV agitation), or fluctuate based on fatigue and environmental demands.

Six Core OT Intervention Areas at Rancho Levels I–III

1. Sensory stimulation; 2. Bed positioning; 3. Wheelchair positioning; 4. Splinting and casting; 5. Dysphagia management; 6. Emotional/behavioral management and family education.

Purpose of Sensory Stimulation at Rancho Levels I–III

To elicit arousal, promote neural connectivity (stimulating the reticular activating system), prevent sensory deprivation, and encourage purposeful behavioral responses through controlled multisensory inputs with adequate latency allowance.

Rationale for Meaningful vs. Random Sensory Stimulation

Personally relevant stimuli (familiar voices, preferred music, guiding hand to face with a familiar washcloth) recruit established neural networks and facilitate purposeful cortical responses, whereas random intense stimulation often triggers only undifferentiated reflexive or autonomic stress responses.

Proper Sequence for Wheelchair Seating and Positioning

Pelvis first, followed by trunk, lower extremities, upper extremities, and lastly head/neck. Pelvic stability establishes the base of support for the entire spinal and extremity alignment.

Pelvic Positioning Principles in a Wheelchair for TBI

Maintain a neutral to slightly anterior pelvic tilt using a firm solid seat base, lumbar support, and pelvic belt positioned at $45^\circ$ across the anterior hip joints. A slight rearward wedge angle can inhibit extensor thrust.

Trunk and Lower Extremity Positioning in a Wheelchair

Trunk: Solid or contoured back support with lateral thoracic pads to correct lateral flexion, plus chest strap for kyphosis. LEs: Hips/knees at $\approx 90^\circ$, feet flat on supported footrests with heels slightly behind knees; abductor wedge to prevent hip scissoring.

Upper Extremity and Head Positioning in a Wheelchair

UEs: Neutral scapulae, slight shoulder abduction/external rotation, forearms supported in neutral on a lap tray or trough, functional wrist/hand position. Head: Dynamic or contoured headrest aligned at midline with forehead strap if necessary to enable forward gaze and visual interaction.

Risk of Excessive Wheelchair Recline in Hypertonic Patients

Exceeding $10\text{--}15^\circ$ of recline triggers extensor tone through the tonic labyrinthine reflex, exacerbates sacral sitting and posterior pelvic tilt, and increases sliding risk.

Preferred Bed Positions for Abnormal Extensor Tone in TBI

Side-lying or semiprone positioning is preferred. Pure supine positioning should be minimized because it stimulates the tonic labyrinthine reflex (promoting generalized extensor tone) and asymmetric tonic neck reflex (ATNR) if the head rotates.

Comparison of Hand Orthoses for TBI

Resting hand splint: Supports joint alignment during flaccidity or fluctuating tone. Antispasticity splint: Maintains finger abduction to reduce flexor hypertonicity. Hand paddle: Provides flat weight-bearing surface in therapy. Hard cone splint: Keeps flexed fingers from digging into palms and provides sustained inhibitory pressure to finger flexors.

Indications and Protocol for Serial Casting in TBI

Indicated for moderate-to-severe spasticity and contractures refractory to conventional orthoses. Applied to one joint at a time, each cast remains for 5–7 days to provide prolonged low-load mechanical stretch, with skin and neurovascular integrity monitored continuously.

Discontinuation Criteria for Serial Casting

Discontinue when functional ROM is achieved, when no ROM gain occurs after two consecutive casts, or immediately upon evidence of skin breakdown/compromise. A bivalve cast is often fabricated post-removal for maintenance.

Purpose of Combining Neurotoxin/Nerve Blocks with Serial Casting

Botulinum toxin type A or focal nerve blocks temporarily eliminate focal hypertonicity, creating a therapeutic window that makes casting, passive stretching, and hygiene/positioning substantially more effective.

Mobility Precautions Following Decompressive Craniectomy

A custom protective helmet must be worn at all times during out-of-bed mobility and transfers to safeguard the unprotected brain tissue. Monitor for sunken flap syndrome, postural instability, and adhere strictly to tolerance limits.

Methods to Establish Nonverbal Yes/No Communication in Severe TBI

Assess and utilize consistent motor outputs such as eye blinks, vertical eye gaze, slight head nod, single-digit movement, or an accessible microswitch/button system tailored to preserved motor control.

Expansion of OT Evaluation at Rancho Levels IV–VIII

Evaluation broadens from passive responsiveness and positioning to active physical capacities, swallowing, executive function, perception, ADLs/IADLs, driving potential, vocational abilities, and psychosocial adjustment, administered in shorter chunks to accommodate mental fatigue.

Physical Performance Evaluation and Treatment Hierarchy in TBI

Evaluate ROM, tone, strength, sensation, balance, and coordination. Intervention sequences proximal to distal: establish pelvic stability $\rightarrow$ trunk control $\rightarrow$ scapulohumeral and limb control, immediately integrating these into functional occupational performance.

Evaluation and Management of Dysphagia in TBI

Clinical bedside swallowing exam and instrumental assessments (videofluoroscopy/FEES). Interventions include upright $90^\circ$ positioning, bolus consistency modifications, adapted utensils (e.g., nose-cutout cup), pacing techniques for impulsivity, and aspiration precautions.

Rationale for Functional Task-Based Cognitive Evaluation

Standardized paper-and-pencil tests isolate cognitive components in artificial environments and often overestimate function. Task-based assessment (e.g., cooking, medication sorting) reveals how attention, sequencing, problem-solving, and safety awareness operate under real-world multisensory demands.

Evaluation and Remediation of Visual/Perceptual Deficits in TBI

Early screening for acuity, diplopia, oculomotor tracking, and visual fields, with referral to neuro-optometry. Interventions include prisms, monocular occlusion/spot patching, systematic saccadic scanning training, and environmental modifications.

Unilateral Spatial Neglect vs. Visual Field Deficit (Hemianopia)

Hemianopia is a sensory loss of visual input from a specific visual field cut (client typically demonstrates awareness and spontaneously attempts compensation). Neglect is an attention/perceptual processing deficit (most often right parietal lesion causing unawareness of left personal/extrapersonal space).

Anosognosia vs. Prosopagnosia vs. Apraxia

Anosognosia: Lack of awareness or outright denial of one's own neurological deficits. Prosopagnosia: Inability to recognize familiar faces visually. Apraxia: Inability to execute learned purposeful motor acts despite intact motor, sensory, and comprehension abilities.

Ideational vs. Ideomotor vs. Constructional Apraxia

Ideational apraxia: Loss of concept of the task; misuses objects (e.g., attempting to brush teeth with a hairbrush). Ideomotor apraxia: Understands the task but cannot translate the motor plan into execution on command. Constructional apraxia: Inability to synthesize parts into a 2D or 3D whole (e.g., block building, drawing).

Initiation Deficits vs. Perseveration vs. Impaired Generalization

Impaired initiation: Inability to begin a motor or cognitive activity spontaneously. Perseveration: Pathological repetition of a specific verbal or motor response beyond its relevance. Impaired generalization: Inability to transfer an acquired skill or strategy from one context to another.

OT Assessment of Executive Functioning Post-TBI

Evaluated through complex, unstructured IADL tasks (e.g., Weekly Calendar Planning Activity, Executive Function Performance Test, cooking a meal), assessing initiation, planning, organization, cognitive flexibility, error detection, and self-correction.

Cognitive Rehabilitation: Restorative (Rehabilitative) vs. Compensatory

Restorative: Seeks to restore impaired cognitive neural pathways through repetitive cognitive training and neuroplasticity. Compensatory: Uses internal strategies (mnemonics) or external aids (smartphones, alarms, checklist routines, environmental labels) to bypass persistent deficits.

Environmental vs. Interactive Behavior Management in TBI

Environmental: Altering physical surroundings (quiet room, low lighting, eliminating visual clutter, private room). Interactive: Modifying caregiver communication style (calm tone, clear concise instructions, avoiding confrontation, offering controlled choices, validating feelings).

Necessity of Dual Clinical and On-Road Driving Evaluations

Clinical evaluations measure prerequisite client factors (vision, reaction time, executive function, motor control), while on-road evaluations assess dynamic, real-time integration, hazard perception, and tactical problem-solving in actual traffic conditions.

Approach to Vocational Rehabilitation Following TBI

Evaluate performance in actual or simulated job settings, assessing task endurance, multitasking, error monitoring, and interpersonal skills. Utilize job coaches, graded return-to-work schedules, and workplace environmental modifications.

Rationale for Practicing Bilateral Transfers Post-Brain Injury

Real-world physical environments (bathrooms, vehicles) require transferring to both the strong and affected sides. Exclusively transferring toward the intact side early promotes learned non-use, asymmetrical posture, and inflexibility.

OT Role in Psychosocial Adjustment and Grief Following TBI

Facilitating adjustment across nonlinear emotional stages (denial, anger, depression, acceptance), rebuilding occupational identity, fostering self-efficacy, providing peer/family support groups, and establishing meaningful daily routines.

Fundamental Rule for Dressing and Undressing with Hemiplegia

Donning (dressing): Affected extremity is dressed first. Doffing (undressing): Unaffected (stronger) extremity is undressed first.

Environmental Preparation for One-Handed Dressing Training

Stable seated surface (firm chair or locked wheelchair with feet flat on floor), clothing pre-positioned within easy reach in the correct orientation, adequate trunk and midline support, therapist positioned on the affected side for safety.

Front-Opening Shirt Donning Methods in Hemiplegia

Method 1: Insert affected arm, then unaffected arm, gather fabric behind back and flip over head (ideal for restricted shoulder ROM). Method 2: Partially insert affected arm, wrap shirt around back, insert unaffected arm. Method 3: Pull affected sleeve all the way to shoulder, gather collar, swing sleeve around back.

Sequence for Donning a Pullover Shirt with Hemiplegia

1. Place shirt face down; 2. Gather back fabric to opening of affected sleeve; 3. Thread affected arm first until hand emerges; 4. Pull sleeve past elbow; 5. Insert unaffected arm; 6. Gather neck hole, tuck chin, and pull over head; 7. Pull down trunk fabric.

Importance of Visualizing the Affected Hand Through the Sleeve

Hemiplegic clients often suffer from sensory loss, neglect, or apraxia; verifying the hand has fully cleared the sleeve cuff prevents distal trapping, shoulder traction injuries, and skin shearing during garment adjustment.

Sequence for Removing (Doffing) a Pullover Shirt with Hemiplegia

1. Gather fabric at back of neck; 2. Lean forward and duck chin to pull shirt over head; 3. Remove sleeve from unaffected (stronger) arm first; 4. Slide sleeve off the affected arm.

Trouser-Donning Method 1 (Seated Crossing Technique)

Seated securely, use stronger hand to cross affected leg over unaffected knee; thread affected leg into pant leg; uncross leg supporting ankle; thread unaffected leg; pull trousers to hips; stand with balance support to pull over hips and fasten.

Trouser-Donning Method 2 and Its Contraindications

Method 2 uses seated hip-lifting/weight-shifting in a locked wheelchair with anti-tippers. Contraindicated in clients with poor postural balance, severe sensory/perceptual neglect, impulsivity, ataxia, or risk of tipping the chair backward.

Trouser-Donning Method 3 (Bed-Level Recumbent Dressing)

Client lies supine in bed, threads trousers onto affected leg then unaffected leg, pulls to hips, and elevates pelvis via bridging (or side-to-side rolling) to pull pants over buttocks. Indicated when upright sitting/standing balance is severely impaired.

Rationale for Guiding the Affected Leg Down When Uncrossing

Due to absent motor control and impaired protective sensation, letting the affected leg drop uncontrolled can cause knee/ankle torque, joint injury, pain, or pull the client off-balance into a fall.

Independent Bra-Donning Technique for Hemiplegia

Fasten bra clasps in front at waist level; rotate the fastened bra $180^\circ$ until clasps are in back; insert affected arm through its shoulder strap first; insert unaffected arm through the remaining strap; adjust bra over breasts.

Adaptive Strategies for One-Handed Sock and Shoe Donning

Socks: Cross affected leg, gather sock to toe using intact hand, slide over toes and pull up (or use a sock aid). Shoes: Elastic laces, Velcro closures, slip-on shoes, long-handled shoe horn, or adapted one-handed lace-tying techniques.

Technique and Precautions for Donning Shoes with an AFO

Select a shoe 0.5–1 size larger with removable insole; insert the AFO into the shoe first before inserting the foot, or place the foot in the AFO then work the shoe over the assembly. Avoid forcing the heel to prevent skin shear in insensate feet.

Adaptive Equipment for One-Handed Feeding

Rocker knife for cutting food via rocking motion; non-skid mats (Dycem) to stabilize plates; scoop dish or plate guard to provide an edge for food gathering; universal cuff or adapted weighted utensils if grip/coordination is impaired.

Adaptive Strategies for One-Handed Bathing and Hygiene

Shower chair or tub transfer bench, grab bars, handheld shower head, long-handled sponge, wash mitt, soap on a rope or wall dispenser, suction nail brush, and washing the unaffected arm by soaping a washcloth placed across the thigh.

Toileting Adaptations for Hemiplegia

Raised toilet seat with safety frame or drop-arm commode, wall-mounted grab bars on unaffected side, positioning toilet paper dispenser on unaffected side, bidet attachments, and clothing modifications (elastic waistbands).

Adaptations for One-Handed Writing and Communication

Stabilize paper using clipboard, Dycem, or paperweight; nondominant handwriting retraining; speech-to-text dictation software; one-handed keyboards (or chorded keyboards); headset speakerphones.

One-Handed Kitchen and Meal Preparation Strategies

Cutting board with corner guards and stainless steel spikes to secure food, suction-cup base graters, electric can openers, jar openers/under-cabinet clamps, pan stabilizers, and non-skid liner under cutting surfaces.

Rationale for Graded Introduction of One-Handed Techniques

One-handed compensatory adaptations impose high cognitive and motor-planning demands and are energy intensive. Introducing multiple techniques simultaneously induces cognitive overload and frustration; mastering one technique at a time fosters self-efficacy and retention.

Definition of Client Factors (OTPF-4)

Specific capacities, characteristics, or beliefs that reside within the person and influence occupational performance, including values, beliefs, spirituality, body functions (mental, sensory, neuromusculoskeletal), and body structures.

Definition of Performance Skills (OTPF-4)

Observable, goal-directed actions that a person uses to engage in daily life occupations, categorized into motor skills, process skills, and social interaction skills.

Motor vs. Process vs. Social Interaction Skills in Cooking

Motor skills: Reaching for a bowl, grasping a knife, manipulating ingredients. Process skills: Sequencing recipe steps, organizing the workspace, pacing cooking time, problem-solving a spilled item. Social interaction skills: Asking for ingredients, coordinating with a helper.

Distinction Between Attention (Client Factor) and Sequencing (Performance Skill)

Attention is an internal cognitive body function (client factor). Sequencing is an observable, task-level execution action (performance process skill). A client factor deficit may or may not translate into an observable performance skill breakdown during a real occupation.

Bottom-Up vs. Top-Down Approaches in OT

Bottom-up: Evaluates and treats underlying impairments/client factors (e.g., strengthening biceps, ROM exercises) assuming function will naturally improve. Top-down: Begins with the client's occupational performance in real contexts, analyzing performance breakdowns to determine limiting factors.

Clinical Scenario: Increased Biceps Strength Without Hand-to-Mouth Function

Demonstrates that remediating an isolated client factor (strength) does not ensure improved occupational performance skills (feeding). Coordination, motor planning, dynamic stability, and task-specific kinematics must be practiced in functional contexts.

Performance Skills vs. Performance Patterns

Performance skills are discrete observable goal-directed actions executed during an activity (e.g., grasping, pacing). Performance patterns are the habits, routines, roles, and rituals that structure and organize daily life over time.

Definition and Purpose of an Occupational Profile

A summary of the client's occupational history, experiences, daily patterns, interests, values, and priorities, gathered to identify what is personally meaningful and guide client-centered intervention.

Categorization: Grip Strength, Visual Field Cut, and Task Pacing

Decreased grip strength and left visual field cut are client factors (neuromusculoskeletal and sensory body functions). Poor pacing during cooking is a performance skill (specifically a process skill).

Value of Evaluating Performance in Natural vs. Contrived Contexts

Contrived or simulated tasks fail to reproduce real environmental constraints, distractions, and sensory feedback, often masking true occupational errors and leading to inaccurate conclusions regarding independence.