disorders of consciousness Flashcards
what type of disorder is complete unarousable and unresponsiveness and lacks most basic responce such as avoid pain
coma
coma occurs due to dysfuction of what exactly
ascending reticular activating system found in reticular formation in brainstem or both hemicortices
what are the areas affected in a person in coma
central brain stem from caudal medulla to rostral midbrain and both hemispheres
what could cause a coma
AEIOU TIPS
alcohol/ acidosis
epilepsy/ electrolytes/ encephalopathy
infection
overdose /o2 deplete
uremia
trauma/tumor/ toxin
insulin
psychiatric/ poisoning
stroke
what disorder is when a oerson has lost awareness of themselves and environment but retain basic life functions such as breathing, circulation, and sleep wake cycle
vegetative state
what is damaged in vegetative state
damage to cerebral cortex but brainstem remains intact
in coma do pts remain comatose definitely or chance of change
yes can evolve to
waking up (+- degree of disability )
vegetative state
death
vegetative state can remain as it is or eveolve to what
minimally conscious state
waking up
what is a lighter stage of vegetative state
minimal conscious state
mcs and vs differ from eachother
in mcs individuals demonstrate some type of purposeful interaction w environment
what disorder can communicate by eye movements only
locked in syndrome
complete paralysis of voluntary muscles in the body except those controlling the eye
locked in syndrome
what area of brain damaged in locked in syndrome
ventral pons or midbrain is affected part of brainstem sends singnals btwn brain and sc
ventral pontine infarct, complete paralysis, preserved consciousness, preserved eye movements
locked in syndrome
what are 3 cardinal findings for diagnosis of brain death
coma
absent brainstem reflexes
absent resp drive
