Altered mental state Flashcards
What are the common neurological and non neuro causes of altered mental state
neuro: seizures, stroke, CVA disease, CNS infection, CNS malignancy, hypertensive encephalopathy, dementia
non neuro: toxic-metabolic encephalopathy, Korsakoff’s syndrome, Wernicke’s encephalopathy
Differences between demetia and delirium
DM: chronic development of cognitive dysfunction (over years)
DL: an acute altered mental status (developing over hours to days)
Most cases of dementia are
____ are not really demented but have
significant depression or transient altered mental states
____ of those with apparent dementia
have a potentially treatable disorder.
irreversible
15%
10%
Criteria for dementia diagnosis (3)
most common cause of treatable dememtia
-Has no single cause
-wide range of disturbances
-commonly chronic and irreverisble
-most common cause of -treatable dementia is medications
Characteristics of alzheimer’s disease (5)
- one of the most common degen diseases of the brain
- an
increase in frequency of the disease with age - cause is unknown
- ACh has been found to be
substantially reduced as well as the enzyme that produces ACh - loss in cognition, memory, and emotional memeory
AD affects the three processes that keep neurons healthy
communication, metabolism,
and repair.
plaques form in the hippocampus and in areas of the cerebral cortex critical in
decision making in what condition
AD
Alzheimer’s disease usually begins in the
what is impaired and what occurs
6 or 7 decade
Judgment is
impaired as is the ability to concentrate, personality changes and language disturbances
Depression occurs in about ____ of patients with AD
65%
The disease is associated with an increased risk of death – approximately
______ of the patients with AD die within 5 years of diagnosis.
50%
What is dementia with lewy bodies
what does the pt develop
________ is common
Parkinson plus syndromes along with multiple systems atrophy
Pt develop hallucinations and fluctuations in attention and level of arousal and parkinsonism
sleep behavior disorder is common
Frontotemporal dementia
- 2 categories: FTD (loss of apathy, personality changes and neuropsychiatric dysfucntion) , PPA (language deficits)