Intellectual Disability Psychiatry Flashcards
Define disability
1.
- Significant impairment of intelligence (IQ 70 or less, bottom 2.5%)
- Significant impairment of adaptive functioning - activities of daily living (eg washing, dressing, finances, cooking)
- Both these impairments evident before adulthood (18 years, brain is mature)
Intellectual disability vs learning disability
Same thing
Intellectual is more medical language wise
Learning disability acquired during adulthood is called:
Acquired brain injury
Eg could be RTA, meningitis
What is NOT intellectual disability?
- Isolated with specific skills eg reading - learning difficulty
- Emotional/behavioural problems that may have disrupted schooling and had an impact on achievement later in life
- ADHD or autism
- Head injury/cognitive decline in adult life
Autism is more common in people with ID but it does not count as ID
Epidemiology/associations of of ID
- Neurological disorders eg cerebral palsy, epilepsy
- Visual and auditory impairments
- More males
- Ill mental health
- Reduced life expectancy (22 years for men)
Causes of ID
- Pre-natal - eg genetic (down syndrome), drugs/alcohol, cerebral palsy, malnutrition, diseases from mother
- Perinatal - premature birth, asphyxia, intrauterine infection eg toxoplasmosis
- Post-natal - meningitis, head injury, measles, non-accidental injury
Phenotype for people with down syndrome
- Broad flat face
- Slanting eyes
- Epicanthal eyefold
- Short nose
- Short and broad hands
- Big toes widely spaced
What is Down Syndrome associated with?
- Depression
- Early onset dementia
- Hypothyroidism
Fragile X syndrome
FINISH
- Trinucleotide repeat disorder (CGG)
- Most common cause of inherited LD
- Physical features - high forehead, large ears, long face, prominent jaw, large testes
- Connective tissue weakness
- Hyperextensible joints
- Striae on skin
- Psychiatric- social anxiety, aggression, hyperactivity, ADHD, self injury
Levels of ID
- ICD-10 (international classification of disease) has guide to assessing degree of intellectual disability
- Mild 69-50
- Moderate 49-35
- Severe - 34 or less
Mild LD
- Delayed but everyday speech normal
- Good non-verbal communication
- Normal continence
- May live independently
- Able to read, write and do simple maths
- Can describe feelings/emotions but may need help
Moderate LD
- Unlikely to be living independently - need some supervision with ADLS
- Language is delayed but use simple phrases
- Fully mobile but maybe delayed
- Increased risk of neurological disorders esp epilepsy
- Mainly continent
- Some describe basic emotions - happy/sad
Severe LD
- Severe delay lamnguage. few words or absent speech
- Need supervision 24hrs
- Mainly incontinent
- Autism common
- Neurological and sensory deficits common
- MSK abnormalities - mobility limited
- Cannot describe feelings
History for ID
- HPC
- Psychiatric/ID history
- PMH, FH, DH
- Developmental history
- Social history
- Risk assess
MSE components
- Appearance and behaviour
- Speech
- Mood
- Thoughts
- Pereceptual disturbances
- Cognition
- Insight
- Risk assessment
MDT for ID
- Community learning disability nurses
- SALT
- Occupational therapists
- PT
- Clinical psychologist
- Care managers/carers
- Teachers
Adaptations for LD appointments
- Allocate more time
- Talk to informants
- Reduce stress - see at home, avoid long waits
- If communcation is difficult get help
What is diagnostic overshadowing?
- Missing the underlying condition due to everything being pinned on intellectual disability
Treatments for people with LD - generic principles
- MCA
- May need extra support - accessible information
- Low and slow with medications
Wing and Goulds triad - autism
Triad of impairemnts
* Social spectum - aloof –> sociable with one person
* Communication spectrum - none –> unusual/metaphorical
* Restricted activities/imagination spectrum - handles objects for sensation –> associated with rigid, repetitive behaviour
Sensory sensitivities autism
- Hyper/hyposensitivity
- Can be to pain, sound, touch
- Sound most common
- Sensory block/tune out with humming for example
What are challenging behaviours?
- Culturally abnormal behaviour
- Intensity, frequency or duration means that physical safety of the person or others is jeopardized
- Or will mean that the person could be denied access to ordinary community facilities
Examples of challenging behaviours
- Aggressive
- self injury
- Destructive
- Loud
- Inappropriate sexual behaviour
- Spitting/smearing
- Sexist, racist or other upsetting
Common health problems of those with disability
- Constipation
- Dental problems
- Epilepsy
- GORD
- Infections - ear, URTI
- Mobility problems
- Obesity
- Swallowing problems