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103 Cards in this Set
- Front
- Back
What are the ages of people who are old, young-old, old-old, oldest-old?
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Old - 65 years and older
Young-old - 65 to 74 Old-old - 75 to 84 Oldest-old - 85 years and older |
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Who experiences negative emotions more, the elderly 60 years and older, or young people aged 18 to 30 years?
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Elderly
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What difference in reactions do the elderly have to negative and positive stimuli
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less reactive to negative and more reactive to positive than younger people
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Do older people seek more interactions with more people or more intimate interactions with fewer people? What is the term used to describe this phenomenon?
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More intimate interactions with fewer people
Social Selectivity |
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Do older more have less interest and capacity to have sex?
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No
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What percentage of the elderly have at least one major medical condition?
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80%
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What happens to the quality and depth of sleep as people age?
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it declines
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By age 65 what percentage of people report insomnia?
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25%
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What are the two main causes of insomnia in the elderly?
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1. medication side effects
2. pain |
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Do the rates of sleep apnea increase of decrease with age?
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increase
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What type of treatment has been found to reduce insomnia in the elderly?
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psychological treatment
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Prescribing multiple drugs to a person is called what?
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polypharmacy
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How many medications are prescribed to at least one third of elderly people?
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5 or more
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Polypharmacy increase the risk of adverse drug reactions which results in what three things?
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numerous side effects, toxicity, and allergic reactions
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What is the main reasons that toxicity and side effects are more common in elderly who take psychoactive drugs?
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because these drugs are mostly tested on younger people and gauging the appropriate dose for lower kidney and liver metabolisms in the elderly is difficult
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What is the longest running study of ageing?
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Baltimore Longitudinal Study of Ageing
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What is called when people are no longer available for follow-up research because of death?
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selective mortality
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What is least prevalent in people 65 years or older?
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mental disorders
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What is delirium?
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a disturbance of consciousness and a change in cognition that develop over a short period of time
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What is dementia?
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multiple cognitiive deficits that include impairment in memory
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What are the three main methodical issues that could help explain the low prevalence of mental disorders in the elderly?
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1. Selective Mortality
2. Response Bias 3. Cohort Effects |
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Describe six main differences between dementia and delirium?
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1. Dementia develops over years where delirium is rapid onset
2. Dementia changes in memory where delirium they have trouble concentrating 3. Dementia not explained by another medical condition where delirium is secondary to another medical condition 4. Dementia is progressive and non reversible where delirium fluctuates over the course of a day 5. Dementia cannot be treated where delirium is reversible 6. Dementia risk increases with age where delirium does not |
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Define dementia?
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A deterioration of cognitive abilities such that social and/or occupational functions are impaired
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What is a major risk factor for dementia?
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Mild cognitive impairment
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What are the three stages of progression in dementia?
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1. Stage 1 - Mild
2. Stage 2 - Moderate 3. Stage 3 - Sever |
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What symptoms present in Stage 1 Dementia?
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Difficulty remembering things
Forgetting simple things Forgetting words for items Awareness of memory lapses Mood swings |
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What symptoms present in Stage 2 Dementia?
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More sever memory impairment
Asking repetitive questions Difficulty in every day life Become Messy Social withdrawal Recite past often Personality changes Inability to recognise familiar people Socially withdrawn Sleep disturbances Loss of inhibition |
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What symptoms present in Stage 3 Dementia?
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Oblivious to surrounding environment
Unable to care for self May lose ability to communicate Sleep often Often vulnerable to other illnesses |
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What sleep difficulties are often experienced by people with dementia?
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1. Excessive daytime napping
2. Difficulty falling asleep at night 3. Frequently wake during the night 4. Wake excessively early 5. Sundowning - wake during the night in a confused state |
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What percentage of individuals with mild AD have a sleep disturbance?
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25%
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What percentage of people with moderate-sever AD have sleep disturbances?
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50%
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What percentage of the population worldwide have dementia?
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0.4%
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What are the three main types of dementia?
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1. AD
2. Frontotemporal 3. Vascular |
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When was AD first identified?
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1906
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What insight is gained from the high comorbidity between sleep and dementia?
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correlational but adequate sleep is required for cognitive functioning
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What percentage of people with MCI develop dementia?
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1% per year
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What is the prevalence of dementai in 60 to 69 years olds and those aged 85 and older?
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1 to 2% in 60 to 69 years olds
more than 20% in those aged 85 and older |
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What percentage of people with dementai have AD?
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80%
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AD is characterised by what symptoms?
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Absentmindedness
Irritability Difficulty concentrating Difficulty with short-term/working memory and learning Language problems Word finding issues Disorientation |
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What percentage of people with AD have comorbid depression?
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30%
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What symptom is often common in AD before cognitive deficits become noticeable?
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apathy
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What are the two reasons amyloid can build up in the brain?
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1. overproduction of beta-amyloid, or
2. deficiency in clearing beta-amyloid |
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How long can biomarkers be identifiable before cognitive decline begins?
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10 to 20 years
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What are the main two biomarkers are associated with AD?
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plaques (beta-amyloid) and neurofibrillary tangles (protein tau)
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How are plaques and tangle measured?
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Plaques are measured through PET scans
Tangles are measured through cerebrospinal fluid (CSF) |
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Which area of the brain are tangle most dense?
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hippocampus
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What is the hippocampus important for?
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memory
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What neurobiological changes occur int he brain over time due to the presence of plaques and tangle?
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loss of synapses for acetycholinergic (ACh) and glutamatergic neurons, neurons begin to die, cortical shrinkage and ventricle enlargement
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What areas of the brain are not usually affected in AD?
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Cerebellum
Spinal cord Motor and sensory areas |
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What percentage of people with AD have brain deterioration that leads to motor deficits?
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25%
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What is the heritability of AD?
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79% heritability
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What gene on chromosome 19 has been identified as as increasing the risk of AD
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apolipoprotein E4 or ApoE-4 allele
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At what age does early onset AD occur?
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35 years old
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What is the risk for developing AD if you have one E4 allele? and two E4 allele?
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one E4 allele 30% risk
two E4 allele 90% risk |
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What percentage of people with AD have one E4 allele?
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50%
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What is the major Australian study that is researching dementia biomarkers?
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Australian Imaging, Biomarkers and Lifestyle Flagship Study of AGeing (AIBL)
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What risk factors have been identified as increasing the risk of developing AD?
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Smoking
Being single Depression Low social support |
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What risk factors have been identified as decreasing the risk of developing AD?
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Mediterranean diet
Exercise Education Cognitive engagement |
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In what two ways is cognitive engagement protective?
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1. associated with less build up of beta-amyloid
2. associated with increased cognitive ability |
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What was found in 'use it or lose it' meta analysis study looking at frequent versus infrequent engagement in cognitive activity?
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frequent cognitive activity is related to a 46 percent decrease in risk of AD compared to infrequent cognitive activity.
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What is the term for the idea that some people may be able to compensate for AD by using alternative brain networks or cognitive strategies such that cognitive symptoms are less pronounced?
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cognitive reserve
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What predicts more decline in cognitive functioning, greater risk of AD and dementia, and a faster progression of AD?
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a lifetime history of depression
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What type of dementia causes a loss of neurons in the frontal and temporal regions of the brain?
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frontotemporal dementia (FTD)
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What type of memory is affected in frontotemporal dementia?
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working memory
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What is the typical onset of frontotemporal dementia?
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mid to late 50's - mean 52.8 years
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What is the male/female ratio in frontotemporal dementia?
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14:3
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Neural deterioration in FTD predominantly occurs in what two specific areas of the brain?
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anterior temporal lobe and prefrontal cortex
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What are the early signs of frontotemporal dementia?
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changes in personality and judgement
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Functional impairment in three of what six areas must exist to meet the criteria for frontotemporal dementia?
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Empathy
Executive functioning Ability to inhibit behaviour Compulsive or perseverative behaviour Hyperorality Apathy |
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People with frontotemporal dementia show and profound change in emotion that commonly causes what to happen?
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their relationships to breakdown
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How long after diagnosis of frontotemporal dementia do people usually die?
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Within 5 to 10 years
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What is the prevalence of frontotemporal dementia?
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Unclear but between 4 to 20%
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Frontotemporal dementai is typically characterised by dysregulation in what two domains?
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executive functioning and emotion regulation
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What type of dementia is caused by cerebrovascular disease?
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Vascular Dementia
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What is the most common condition that causes Vascular dementis?
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a stroke
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What percentage of people develop vascular dementia in the first year after a stroke?
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7%
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The risk factors for vascular dementai are the same as the risk factors for what other disease?
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cardiovascular disease
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What are the risk factors for developing vascular dementia?
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smoking
High cholesterol Elevated blood pressure |
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Strokes and vascular dementia are more common in what race of people?
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African Americans
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Why do symtoms of vascular dementia vary so much?
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because causes such as a stroke affect different areas of he brain
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What are the two subtypes of dementia with lewy bodies?
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with or without parkinsons disease
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What percentage of people with parkinsons disease develop dementia with lewy bodies?
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80%
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Dementia with lewy bodies is more likely than AD to show what symptoms?
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prominent visual hallucinations and fluctuating cognitive symptoms
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What is a distinct symptoms of dementia with lewy bodies?
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intense dreams accompanied by levels of movement and vocalising
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What are people with dementia with lewy bodies often sensitive to?
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antipsychotic medications
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What are the most common diseases and injury can cause dementia?
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Encephalitis
Meningitis Syphalis HIV Neurological trauma ie TBI Toxin (lead, substance abuse etc) |
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What is the main effect of medications used to treat dementia?
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to slow the cognitive decline
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What is the most commonly used type of medication to treat dementia, and what does it do?
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Cholinesterase inhibitors, used to interfere with the breakdown of acetycholine.
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Why do many people discontinue using cholinesterase inhibitors?
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because they have aversive side effects such as nausea
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Medical treatment are commonly used to treat what psychological symptoms of dementai?
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depression, apathy, and agitation
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Describe the 3 most common psychological interventions for dealing with dementia?
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1. Therapy to help the carers better cope
2. Exercise to improve cognitive functioning 3. Behavioural approaches to compensate for memory loss, reduce depression and disruptive behaviours |
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How is delirium typically described?
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as a clouded state of consciousness
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What are the two most common symptoms of delirium?
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1. extreme trouble focusing attention, and
2. profound disturbances in the sleep/wake cycle |
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What percentage of people with delirium have delusions?
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25%
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How is mood affected in people with delirium?
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people with delirium have extreme mood swings
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What causes delirium?
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1. Drug/medication complications
2. metabolic/nutritional imbalances 3. Infections/fevers 4. Neurological disorders 5. Extreme stress |
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What percentage of delirium is caused by drug or medications complications?
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40%
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When are physicians most likely to misdiagnose delirium?
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When lethargy is present
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What are the 6 major core features of delirium?
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1. disturbances in attention and awareness
2. a change in cognition that is not associated with any dementia 3. rapid onset 4. symptoms typically caused by a medical condition 5. fluctuates very rapidly 6. responsive to treatment |
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What are five reasons delirium may be associated with age?
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1. physical changes later in life
2. increased suseptibility to chronic illness 3. contra-indication of medication 4. greater sensitivity to medication 5. presence of age-related brain atrophy |
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Once the underlying cause of delirium is identified how long does it take for the condition to clear?
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1 to 4 weeks
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Older individuals who have depression and GAD, 97%+ have had what?
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an diagnosis prior to the age of 65
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What disciplines are involved in the multi-discipline treatment of late life disorders?
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nursing, psychology, social work, medicine, OT, and pharmacy
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