Intellectual Disability Flashcards

1
Q

what conditions do PWLD have higher risk of getting

A
epilepsy 
mental illness
dementia 
hypothyroidism 
diabetes 
heart failure 
CKD
stroke
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2
Q

define learning disability

A

condition of arrested or incomplete development of the mind, which is especially characterised by impairment of skills, manifested during the developmental period, which contribute to the overall level of intelligence, i.e. cognitive, language, motor, and social abilities.

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3
Q

what is the criteria for diagnosis of a learning disability

A

IG < 70
must present <18 (developmental aetiology)
deficits in adaptive functioning

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4
Q

what is used for psychometric assessment

A

Wechsler Adult Intelligence Scale (WAIS)
In children depending on age (WISC)
WPPSI for primary and preschool children

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5
Q

what percent of population have an IQ < 70

A

3%

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6
Q

what is the average IQ

A

100

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7
Q

what is the difference between learning difficulties and disabilities

A

disability= affects overall IQ, affects all aspects of life ans caring for you self

difficulty= a specific problem e.g. dyslexia, dyscalculia, dyspraxia

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8
Q

what is the flynn effect

A

each generation smarter than the one before- slowing down in developed countries

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9
Q

what is not a learning disability

A

dyslexia/ other learning difficulties
not something that happens to an adult (brain injury/ dementia)
cognitive decline due to chronic psychosis

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10
Q

what are the IQ parameters for severities of LD

A

Mild LD IQ 50-69

Moderate LD IQ 35-49

Severe LD IQ 20-34

Profound LD IQ < 20

Borderline LD IQ 70+

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11
Q

what is the presentation of borderline LDs

A

IQ range 70-84, mental age 12 to under 15 years.
Not a category in DC-LD, ICD-10 or DSM-IV.
Usually able to read

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12
Q

what is the presentation of mild LDs

A

IQ range 50-69, mental age 9 to under 12 years.
Most Common
Delayed speech - able to use everyday speech
Full independence – Self care, practical & domestic skills
Difficulties in Reading and Writing
Capable of unskilled or semi-skilled work
Problems if Social or Emotional Immaturity
Rarely organic aetiology

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13
Q

what is the presentation of a moderate LD

A

I.Q. range 35-49, mental age 6 to under 9 years.
Slow with Comprehension and Language
Limited Achievements
Delayed Self care and Motor Skills
Simple Practical Tasks - Often with Supervision
Usually Fully Mobile - Physically Active
Discrepant profiles
Majority Organic Aetiology
Epilepsy & Physical Disability common

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14
Q

what is the presentation of a severe LD

A

IQ range 20-34, mental age 3 to under 6 years.
Generally more marked impairment than in moderate LD and achievements more restricted.
Epilepsy

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15
Q

what is the presentation of a profound LD

A

IQ less than 20 (difficult to measure), mental age less than 3 years.
Severe limitation in ability to understand or comply with requests or instructions.
Little or no self-care.
Often severe mobility restriction.
Basic or simple tasks may be acquired.

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16
Q

give three examples of trisomy conditions that can cause LDs

A

downs- 21
patau syndrome- 13
edwards syndrome- 18

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17
Q

what are the features of cri du chat 5p

A

microcephlay severe/profound LD

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18
Q

what are the features of angleman 15Q

A

(maternally derived) LD, ataxia, paroxysms of laughter

19
Q

what are the features of prader willi 15Q

A

(paternally derived) LD, over eating, self injurious behaviour

20
Q

what are the features of velo-cardiofacial syndrome 22Q

A

50% have LD, increased risk of schizophrenia

21
Q

what genetic abnormalities arising from the sex chromosomes can cause LDs

A
tuners  45, XO
trisomy X, 47 XXX
klinefelter, XXY
XYY male (IQ lower than normal) 
fragile X, FMR1 gene, trisomy repeat
22
Q

what defects of protein, carbohydrate, lipid metabolism can cause severe LD

A

Tuberous Sclerosis
Congenital Hypothyroidism
Lesch Nyhan Syndrome (X Linked)

23
Q

what are the prenatal causes of a LD

A

Maternal Infection-Rubella, CMV, Toxoplasmosis
Exposure to medication or drugs
alcohol (Foetal alcohol spectrum disorder – mild LD, association with ADHD )
Poor Diet, Substance abuse

24
Q

what are the perinatal causes of LDs

A

Neonatal septicaemia
Pneumonia
Meningitis/encephalitis
Other problems at delivery – birth injury
Other newborn complications (respiratory distress, hyperbilirubinaemia, hypoglycaemia, extreme prematurity)

25
what are the post natal causes of LDs
CNS infections, vascular accidents, tumours, hypoxic brain injury, head injury, NAI, exposure to toxic agents, psychosocial environment Congenital hypothyroidism – now screened for neonatally, if untreated leads to mental and growth retardation. Other disorders of unknown aetiology Cerebral palsies, epilepsy, autistic spectrum disorders, childhood disintegrative disorders.
26
what are the infant. childhood causes of LDs
NAI, trauma, infections, toxins
27
what are the different terms for a learning disability
Mental Retardation - ICD10/DSMIV Mental Handicap - Legislation Intellectual Disability Intellectual Developmental Disorder DSMV/ICD11
28
what are the obrien principles
Learning disabled people will continue to grow and develop given an appropriate environment Learning disabled people are worthy of all the dignity and rights of any citizen Concept of learning through risk taking and the avoidance of over-protection The availability of everyday, normal conditions of life The availability of generic environments and services
29
what are the social impacts of LDs
``` discrimination family dysfunction sexual abuse different appearance poor employment stigma poor educational provisions autistic spectrum disorder ```
30
what are the physical implications of LDs
physical disability sensory problems mobility problems
31
what are the associated health problems with LDs
mental illness epilepsy substance misuse physical illness
32
what puts someone at risk of a LD
Organic vulnerability – ‘brain damage’ Social deprivation/disadvantage Life events Psychological reasons – learned helplessness
33
why are other conditions underdiagnosed in people with LDs
Intellect trouble labelling emotions and experiences Diagnostic overshadowing- Symptoms attributed to LD Compliance “Talked out of” symptoms Eager to please
34
how do you assess LDs
``` Nature and severity of LD Current problem, Hx of Predisposing, precipitating and perpetuating factors Full History – Family Hx Full physical exam Mental state exam Environmental and social factors Support network Reliance on informants ```
35
what is the management for LDs
``` Therapeutic environment General support (eg school), Specific support (eg psychiatric problems) Education Patient, Carers Social Unmet needs, Support network Communication Hearing aids, glasses, Pictorial, Makaton Behavioural Cognitive Pharmacological Physical interventions Headgear Isolation Admission Respite Specialist unit ```
36
what are the possible psychological therapies for LDs
``` behavioural (basic skills, normal patterns, relaxation, assertiveness training) CBT (problem sloving, anxiety, depression, offending behaviour) psychodynamic therapy (relationships, adjustments) ```
37
what are the possible pharmalogical treatments for LDs
``` Antipsychotics Psychosis Behavioural disturbance Autism ADHD ``` ``` Antidepressants Depression Anxiety disorders Self injury Autism ``` Anticonvulsants Bipolar affective disorder Episodic dyscontrol
38
how might schizophrenia present in LDs
3 times more common Age of onset earlier (mean 23) Negative symptoms more common Main presenting symptom may be behaviour change Severe LD Unexplained aggression, bizarre behaviour, social withdrawal, mood lability, increased mannerisms or stereotypies Significant proportion undiagnosed
39
how might depression present in LDs
Three times as common Somatisation ++ Reduced verbal expression of unhappiness, guilt... Biological symptoms – sleep, appetite, energy, concentration, anhedonia
40
what are the cautions of pharmacological treatments in LDs
``` Comorbid physical disorders Epilepsy Constipation Atypical responses Decreased or increased sensitivity Paradoxical reactions Evidence base often lacking ```
41
what is the triad of symptoms of ASD
Abnormal social interaction Communication impairment Rigid/restricted or repetitive behaviour, interests and activities
42
is ASD a learning disability
no develomental disorder
43
what is the management for ASD
STRUCTURE, ROUTINE, PREDICTABILITY, COMMUNICATION ``` Communication aids and Speech and Language Therapy Picture boards, Social stories Educational and vocational interventions Mainstream vs specialist Behavioural interventions Behaviour modification, Social skills training Family intervention Education, Support, Advocacy ```