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32 Cards in this Set
- Front
- Back
problems with memory and orientation x 3, level of consciousness and other thinking functions
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cognitive disorders
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cognitive disorder sx are caused by
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abnormal neural chemistry, structure or physiology
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3 major cognitive disorders
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delirium, dementia and amnestic disorder
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major difference between normal aging and presence of cognitive disorder
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normally aging pts are able to care for themselves and carry on a normal life
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common sx of elderly depressed pts; called ___
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decreased concentration and speed of mental process; pseudodementia
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syndrome of cognitive impairment that results from CNS dysfunction; characterized by clouding of consciousness
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delirium
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delirium presents in which type of setting?
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course of an acute medical illness
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Dx: no consciousness impaired, sad mood, slow onset, little ANS dysfunction, normal arousal and EEG, no delusions/hallucinations, AM diurnal variability
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depression
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Dx: impaired consciousness, quick onset, delusions/hallucinations, ANS dysfunction
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delirium
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Dx: no consciousness impaired, slow onset, normal arousal/ANS dysfunction, no delusions/hallucinations, little diurnal variability, loss of intelectual ability
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dementia
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disorder characterized by gradual loss of memory and intellectual function w/o impaired consciousness
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dementia
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types of dementia
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alzheimer's, vascular, Lewy body, HIV
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accumulation of beta-amyloid plaques and reduced levels of choline acetyltransferase in consistent with which cognitive disorder?
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Alzheimer's
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describe the progression of Alzheimer's in different parts of the brain
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from temporal to frontal (onset of emotional sx) and parietal lobes
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cholinesterase inhibitors (4)
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donepezil, rivastigmine, galantamine, tacrine
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NMDA antagonist; it's action
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memantine; prevents overstimulation of NMDA receptor by glutamate
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cognitive disorder caused by multiple, small cerebral infarctions resulting from athersclerosis, valvular heart disease or arrhythmias
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vascular dementia
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are there neurofibrillary tangles present with Lewy body dementia?
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no
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2 characteristics of Lewy body dementia impt to psychiatry:
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+ psychotic sx occur and pts have adverse rxns to antipsychotic meds
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fabrication of forgotten information in the case of amnesia
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confabulation
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primary cause of amnestic disorder is
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thiamine deficiency secondary to alcoholism
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destruction of mediotemporal lobe structures (mammillary bodies, hippocampus, fornix)
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Korsakoff's syndrome
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disorder characterized by sudden but temporary loss of memory or identity or feelings of detachment, normal level of consciousness
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dissociative disorder
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memory loss in dissociative disorders differs from that in cognitive disorders by:
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cause is usually emotional
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4 major classifications of dissociative disorders
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amnesia, fugue, identity disorder and depersonalization
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major DDx for dissociative disorders
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PTSD
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dissociative disorder that usually resolves in minutes to days
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amnesia
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dissociative disorder in which there is memory loss and leaving home to establish a different identity
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fugue
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fugue is often associated with the excessive use of what?
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alcohol
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dissociative disorder involving many alters in 1 indiv
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identity disorder
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dissociative disorder associated with repeated chronic feelings of detachment
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depersonalization
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tx of dissociative disorders
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hypnosis, drug assisted interview, psychotherapy
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