Neuro Flashcards
(39 cards)
Broca vs Wernicke’s area
Broca - controls motor aspects of speech
Wernicke - language comprehension
S&S meningeal irritation/brain infection
1) impaired neck mobility - stiffness and pain w/ limitation and guarding into neck flexion (kernig’s sign and/or brudzinski’s sign)
2) irritability, visual discomfort w/ bright light
3) altered level of consciousness; sleepiness, can progress to coma
4) severe headache, N&V
5) altered vital signs, high fever
6) generalized weakness
S&S of increased intracranial pressure/cerebral edema and brain herniation
1) altered level of consciousness - progresses from restlessness and confusion to decreasing level of consciousness
2) altered vital signs (increased systolic BP, widening pulse pressure and bradycardia, periods of apnea, Cheyne-Stokes respirations; elevated temp)
3) headache
4) vomiting
5) pupillary changes (CN 3 signs - unequal pupils, slow reaction to light)
6) papilledema at entrance to eye
7) progressive impairment of motor function
8) seizures
homonymous hemianopsia
loss of 1/2 of visual field in each eye
- contralateral to side of cerebral hemisphere lesion
bitemporal hemianopsia
loss of outer 1/2 of both the R and L visual field (loss of peripheral vision)
- occurs w/ damage to optic chiasm
body scheme disorder (somatognosia) - how to test
have pt ID body parts or their relationship to each other
visual spatial neglect (unilateral neglect) - how to test
determine whether pt ignores 1 side of body and stimuli coming from that side
R/L discrimination disorder - how to test
have pt ID R and L side of body
anosopgnosia - how to test
severe denial; neglect or lack of awareness of severity of condition
- determine whether pt shows severe impairments in neglect and body scheme
figure-ground discimination - how to test
have pt pick out an object from an array of objects
form constancy - how to test
have pt pick out an object from an array of similarly shaped but different sized objects
spatial relations - how to test
have pt duplicate a pattern of 2 or 3 blocks
position in space - how to test
have pt demonstrate different limb positions
topographical disorientation - how to test
determine whether pt can navigate a familiar route on his or her own
depth and distance imperceptions - how to test
determine whether pt can judge depth and distance (navigate stairs, sit down in chair)
vertical disorientation - how to test
determine whether pt can accurately ID when something is upright (hold a cane upright)
ideomotor vs ideational apraxia
ideomotor - pt can’t perform task on command but can do the test when left on own
ideational - pt can’t perform task at all
Decerebrate vs Decorticate
- which patients will have which posturing?
Decerebrate - rigid ext of all 4 limbs and trunk/neck
- seen in comatose pt w/ brainstem lesions between superior colliculus and vestibular nucleus
Decorticate - increased tone and sustained posturing of UE in flexion and LE in ext
- seen in comatose pt w/ lesions above superior colliculus
opisthotonos
prolonged, severe spasm of muscles, causing the head, back, and heels to arch backwards; arms and hands are held rigidly flexed
risk factors for stroke
- atherosclerosis
- HTN
- cardiac disease
- DM
- TIA
sequential recovery stages of a stroke
Stage 1 - initial flaccidity, no voluntary movement
Stage 2 - emergence of spasticity, hyperreflexia, synergies
Stage 3 - voluntary movement possible, but only in synergies; spasticity strong
Stage 4 - voluntary control in isolated joint movements emerging, corresponding decline of spasticity and synergies
Stage 5 - increasing voluntary control out of synergy; coordination deficits present
Stage 6 - control and coordination near normal
Guidelines to promote learning w/ R hemiplegia
- develop an appropriate communication base: words, gestures, pantomime; assess level of understanding
- give frequent feedback and support
- do not underestimate ability to learn
Guidelines to promote learning w/ L hemiplegia
- use verbal cues; demonstrations or gestures may confuse patients w/ visuospatial deficits
- give frequent feedback: focus on slowing down and controlling movement
- focus on safety (pt may be impulsive)
- avoid environmental clutter
- do not overestimate ability to learn
locomotor training for individuals w/ incomplete injury
high intensity, high frequency training
- 4-5 days per wk
- 20-30 min
- 8-12 weeks