Competency Exam 2 Flashcards
(178 cards)
What is the incidence percentage for Ischemic strokes? Give brief description
- 87%
- Anoxia from lack of cerbral blood flow
- Embolism (artery blockage)
- Thrombosis (blood clot; atherosclerosis)
What neurological deficits are common in R CVA?
L hemiparesis, visual field deficits or spatial neglect, poor insight and judgment, and or/ impulsive behavior.
Extremity: Left hemiplegia
Vision-Perception: Left visual field cut (left homonymous hemianopsia), neglect, gaze paresis; spatial awareness
Cognition: significant cognitive deficits, especially safety judgment; lack of insight and unawareness of deficits; Loss of prosody of speech and impaired pragmatics; attention deficits
Language: dysarthria (resulting from facial and tongue hemiparesis) usually no aphasia
Sensory: Left-sided sensory deficits
Praxis: constructional apraxia (usually right parietal)
What neurological impairments are common in stokes?
**Hemiplegia, hemiparesis **
- impaired postural adaptation, bilateral integration; impaired mobility; decreased independence in any or all ADL, IADL Hemianopsia, other visual deficits
- Decreased awareness of environment; decreased ability to adapt to environment; impaired ability to read, write, navigate during mobility, recognize people and places, drive; can affect all ADL, IADL
Aphasia
- Impaired speech and comprehension of verbal or written language; inability to communicate, read, or comprehend signs or directions; Decreased social, community involvement; isolation
Dysarthria
- slurred speech, difficulty with oral motor functions such as eating, altered facial expressions
Somatosensory deficits
- increased risk of injury in insensitive areas
**Incontinence **
- loss of independence in toileting; increased risk of skin breakdown; decreased social, community involvement
Dysphagia
- at risk for aspiration; impaired ability to eat or drink by mouth
Apraxia
- decreased independence in any motor activity (ADL, speech, mobility), decreased ability to learn new tasks or skills
Cognitive deficits
- Decreased independence in ADL, IADL; decreased ability to learn new techniques; decreased social interactions Depression - decreased motivation, participation in activity; decreased social interaction
If a client is given a 0 - Flaccid score on the Modified Ashworth Scale what would you document and what issues would you address in acute care treatment?
Documentation: Is the patient aware of arm? pain? sensation? PROM?Absence of tone?
Acute Care Treatment Issues:
- Splinting not yet indicated
- Arm positioning (family and nursing education)
- Arm up on pillow when seated or in bed
- Sling for ambulation only
- Elevation to prevent edema
- SROM/PROM program for the family, patient, or both
- Weight bearing incorporation into functional mobility tasks to increase proprioceptive input.
- Initiation of bilateral hand-over-hand tasks
- Initiation of weight-bearing strategies
If a client scores a 1 - slight increase in tone at the end of range on the Modified Ashworth Scale, what would you document and what issues would you treat in acute care?
Documentation: Flexor or extensor; ability to bear weight with or without support at elbow and hand
Acute Care Treatment Issues:
- Splinting not usually indicated yet but if waking for 3 days with hand fisted,then may want to consider splinting. Consider using a resting mitt splint vs a resting hand splint, because it an more easily be adapted in later levels of the continuum of care
If the client scores a 1+ - slight increase in tone at beginning of the range on the Modified Ashworth Scale what would you document and what issues would you treat in acute care?
Documentation: flexor or extensor; ability to bear weight with or without support at elbow and hand
Acute Care Treatment Issues:
- All strategies listed earlier
- Likely can begin gross assist with hand-over-hand tasks
If client scores 2 - marked increase in tone through the entire ROM, but arm can easily be passively moved on the Modified Ashworth Scale what would you document and what issues would you treat in acute care?
Documentation: Flexor or extensor; document task patient is able to perform and not perform with affected hand
Acute Care Treatment Issues:
- Splinting usually indicated. Consider using a resting mitt splint vs a resting hand splint, because it can more easily be adapted at later levels of the continuum of care. A resting mitt splint places the patient in a reflex-inhibiting position with thumb abducted
- Reflex inhibiting positions would be helpful; that is, arm abducted and externally rotated on a pillow
- Keep a closer watch on skin protection, especially in the palm and axilla.
- Gross assist-level activities with increasing independence Grasp-and-release and reaching-tasks competent skills incorporated into such tasks as brushing teeth and obtaining toilet paper.
If you client scores a 3 - on evident throughout all of ROM, an PROM is difficult on the Modified Ashworth Scale what would you document and what issues would you treat in acute care?
Documentation: Flexor and extensor
Acute Care Treatment Issues:
- Also see gross assist level
- May need to aggressively address ROM with either a mobility tech or the family or be integrated into nursing care
- Address pain
- reflex inhibiting positions recommended.
If the client scores a 4 - rigid in flexion and extension on the modified ashworth scale what would you document and what issues would you treat in acute care?
Documentation: Flexor or extensor
Acute Care Treatment Issues:
- Splinting a must to prevent further permanent deformity
- Discuss with the physician use of anti-spasticity medications such as Baclofen or Zanaflex
- Focus all efforts on PROM and tone reduction to prevent joint changes such as heterotopic ossifications (especially in TBI)
Describe the Babinski reflex
Stimulus: Performed by running a blunt object from heel to toes in an arc along the metatarsals
Normal Response: Flexion of all toes with plantar foot eversion
Abnormal Response: Extension of big toe and fanning of other toes; indicative of upper motor neuron damage
Describe Romberg sign
Stimulus: Patient stands with feet together and eyes closed. Do not perform test if patient cannot maintain balance with eyes open.
Normal Response: Mild sway with no loss of balance
Abnormal Response: Inability to maintain balance, indicating a loss of position sense or reduction of peripheral sensation
Describe the Hoffman’s sign reflex
Stimulus: Flick the middle-finger nail bed.
Normal Response: none
Abnormal response: extension of the distal interphalange with subsequent flexion of the thumb, fingers, or both. Usually present in pyramidal tract lesions
Describe Doll’s eye reflex
stimulus: turn head manually while watching the eyes. May need to hod the eyes open.
Normal Response: While turning the head, the eyes should continue to look at the ceiling
Abnormal Response: If the eyes follow the movement of the head, this movement indicates brainstem involvement and a poor prognosis for survival
Describe Decerebrate posturing reflex
Stimulus: observe patient’s position
Normal response: no abnormal tone
Abnormal response: jaw clenched, neck extended, and upper and lower limbs internally rotated and extended, indicating neurological impairment of the brainstem from the sub-thalamus to mid pons. Affects respiratory and cardiovascular centers located in the medulla. It is potentially life threatening, and decerebrate is more serious than decorticate. -Patients may progress or regress between decerebrate and decorticate. However, the regression into decerebrate posturing signifies a more life-threatening sequela
Describe Decorticate posturing reflex
Stimulus: observe patient’s position
Normal Response: no abnormal tone
Abnormal Response: Upper limbs flex, but lower limbs extend with feet in plantar flexion. Indicates upper motor neuron lesion is above the level of the red nucleus
What is a thrombotic ischemic stroke?
Grows to size sufficient to block artery where it lodges; usually results from atherosclerosis
What is an embolic ischemic stroke?
Clot originates in a different site and lodges in a vessel that is too small, blocking arterial blood flow; usually results from atrial fibrillation
What is a hemorrhagic stroke?
bleeding in the brain, as in an intracerebral hemorrhage or around the brain as in the case of subarachonoid hemorrhage
What areas are assessed in stroke during an OT evalutation?
- early mobilization
- ADL evalutation
- Cognitive evaluation
- Swallow evaluation
More detail: roles, tasks, activities important to client, ADLs and IADLs, Postural adaptation, UE function, somatosensory assessment, mechanical and physiological components, voluntary movements, strength and endurance, functional performance, motor learning ability, visual function, speech and language, motor planning, cognition, psychosocial aspects
What are the goal systolic and diastolic blood pressures for stroke patients (ischemic CVA, hemorrhagic)?
Ischemic CVA:
Systolic BP: 140-180 (possibly as high as 200-220)
Diastolic BP: < 130
Purpose and Complications: Compensatory vasodilation maintains adequate blood flow to protect the penumbra (the ischemic, but still viable brain tissue around the area of the stroke) and maintain perfusion
Hemorrhagic CVA:
- Systolic BP - Below 140-160
- Diastolic BP - Below 90
- Purpose and Complications: Untreated hypertension allows expansion of hemorrhage. Increased SBP causes enlargement of the CVA in 14% of cases. With a controlled BP of SBP < 160 and DBP 90, the rate of neurological degeneration is lower; as is the risk of rebleed.
What aspects of care should an OT address during the initial session?
bed-chair position schedules, splinting needs, obtaining recommended patient equipment before discharge, and instructions for nurses and family regarding transfers, positioning, and feeding
In what position should a motor evaluation be performed?
an upright position, because this position is optimal for function
What issues should be addressed in a motor evalutation?
Functional ability : of the arms and legs during engagement in functional tasks
Self-protection of the arm: In all stages of UE recovery, the therapist should indicate whether the patient protects the arm appropriately.Lack of self-protection provides a goal for the evaluation and is appropriate for the acute care setting, because injury can cause further complications.
Skin integrity: (i.e, reddened area in axilla and palm because of abnormal synergistic tone)
Pain: location and severity
Tone: (MAS) hypotonic or hypertonic (note whether the tone is flexor or extensor synergistic patterning) Ataxia: (may have normal strength and full ROM but can’t control it effectively).
Finger-to-nose: instruct patient to move finger from his or her own nose to therapist’s finger. This motion allows the therapist to assess the quality of the velocity and amplitude of movement
Diadokinesis: Ability to perform rapidly alternating movement, most commonly evaluated via bilateral pronation or supination
Functional reach and grasp: Assess the patient’s ability to control strength and coordination using a styrofoam cup, and raise it up toward the mouth. Assess whether the patient can control the force on the cup as it is grasped and his or her coordination when reaching for and moving the cup. To assess response to treatment and initiate neuromuscular reeducation, incorporate 5 minutes of UE WB, then repeat the finger-to-nose test and a functional task such as reaching for and using a Styrofoam cup. If successful, then provide instruction to incorporate weight bearing into normal activities (e.g., leaning on the armrest of the chair). This task sets the stage for functional recovery in higher levels of the continuum of care.
What would you consider for a ROM and strength evaluation?
- Assess premorbid biomechanical limitations such as arthritis, rotator cuff tear, or bursitis
- Assess proximal and distal ROM and MMT
- record ROM in terms of 0,.25,.50,.75, and full. The degrees may fluctuate significantly on the basis of fatigue, pain, or position. Look at the overall movement of each joint and average the function.
- **-DO NOT complete MMT on a patient with CVA or TBI unless the movement appears near normal.
- Provide education on PROM for the hemiplegic UE for supported shoulder flexion to 90 degrees and ER with scapular mobilization as needed. SROM for shoulder flexion and external rotation is not an advantageous therapeutic intervention. - to improve shoulder ROM, support the hemiplegic or weak arm by holding the humerus approx. 4 inches away from the axilla while maintaining ER. The thumb will also be pointing up. THis proximal hold produces greater pain-free flexion at the hemiplegic shoulder than does a distal hold.