Phys Dx- Neuro Abnormal Flashcards
(56 cards)
aphasias
difficulty with speech
Expressive/ Broca’s asphasia
able to comprehend, but unable to speak
Receptive/ Wernicke’s ashasia
unable to comprehend, fluent nonsensical speech
Global Asphasia
unable to undertand and unable to speak
Apraxia
unable to perform a learned motor action
- parietal lobe dysfunction
Agnosia
inability to recognize sensory stimuli
Delirium Vs. Dementia
Delirium: Acute onset, recent memory loss, heightened awareness, incoherent speech, illusions/hallucinations, impaired sense of time, lasts hours to weeks
Dementia: gradual onset, recent and long-term memory loss, normal alertness, difficulty finding words, impaired orientation
Coma Definition, Pathologic causes, etiology
inability to respond to internal or external stimuli - associated with mortality, 90% of survivors awaken in the first 3 days
- impaired thalamus bilateral
- bilateral hemisphereic injury
- injury to midbrain or below
Causes: cardiac arrest, overdose, stroke, cerebral edema, metabolic condition, trauma to brain, status epilepticus
Definition of Delirium
Hypervigiliant with agitation and impaired concentration and attention
Lethargy
arousal possible with light stimulation
Confusion
impaired attention and incoherent thought
stupor
severly imparied arousal with response to pain
obtundation
more alert than stupor, responds to light stimulation such as shaking pt
fugue
pt suddenly abandons present activity or life and starts a new life in a new place, with amnesia, usually remembers and returns
catatonia
psychomotor disturbances seen in schizophremia characterized by muscular rigidity, excitement or stupor
GCS
Eyes (4) spontaneous, to voice, to pain, none
Verbal (5) conversant, conversant/disoriented, inappropriate words, incomprehensible sounds, none
Motor (6) obeys commands, to localize to pain, withdraws to pain, flexor posturing, extension posturing, none
Score of 15 = wide awake
Score of 3 = deep coma
Lower number, worse prognosis (score below 8 or coma > 72 hours is bad)
Coma Vigil/Alpha Coma
patients act awake - yawn, cough, move but still in vegetative state
Decortitate Posturing
Flexion - adduction and flexion of arms with extension of legs, reflexts destructive lesion in corticospinal tract from cortex to upper midbrain
Decerberate Posturing
Extension - extension adduction and internal rotation of arms and extension of legs (palms turned out, legs and arms extended)
Cause of hernia
increased intracranial pressure
Brainstem Reflex: oculocephalic reflex/Doll’s eyes
hold eyes open and rotate head side to side
if intact, eyes roll to side oppoisite of head movement
if eyes remain fixed and move in the same direction of head movement, suggests lesion in midbrain or pons “dolls eyes absent”
Brainstem Reflex: Vestibulochochlear Reflex
lavage ear with cold water - COWS - cold water opposite and warm water same
tonic with slow movement and nystagmus with quick
hyposmia or anosmia
decreased or absent smell. CN VI deficit - olfactory groove meningioma
pituitary adenoma sxs
p/w HA or visual field defect
increased growth hormone, increased prolactin, increased ACTH (cushing’s)