Chapter 5: Learners with Intellectual & Developmental Disabilities Flashcards
There is considerable disagreement on the definition and classification of intellectual disabilities
True or False
True
A person can ‘grow’ out of intellectual disabilities
True or False
True - some disabilities are minor and with extensive educational programming, some can progress to where they are no longer considered disabled
What are the two criteria an individual must meet to be considered having an intellectual disability?
Low intellectual functioning and low adaptive skills
Many schools classify disability severity according to their IQ scores. Which score is considered to be mild?
A) IQ of 50-70
B) IQ of 30-50
C) IQ of 70-100
D) IQ of 20-25
A) IQ of 50-70
100 is considered normal and below 20 is considered profound
Adaptive behaviour is through to consist of ______ intelligence and _______ intelligence
Social intelligence - undersranding/interpreting people/situations
Practical intelligence - ability to solve everyday problems
An individual who is ____ SD away from the mean IQ score of 100 is considered to have an intellectual disability
2
How has the human genome project been helpful for intellectual disabilities?
It advances ability to diagnose, treat, and prevent genetic conditions
Individuals with down syndrome begin to show very similar brain abnormalities to patients with __________ by the age of 35
Alzheimer’s disease
What are the three ways to characterize pre-natal causes of developmental/intellectual disabilities?
- Chromosomal disorder
- Inborn error of metabolism
- Developmental disorders affective brain formation
- Environmental influences
Which of the following is not a chromosomal disorder?
A) Prader-willi syndrom
B) Williams syndrome
C) Fragile X syndrome
D) Phenyletonuria (PKU)
D) Phenyletonuria (PKU)
_______ is the most prevalent intellectual disability that is present at birth
down syndrome
What is the greatest link to increased risk of having a child with down syndrome?
Maternal age
If a father is a carrier of fragile X and has a son and a daughter who will be more likely to express the disorder?
The daughter may express the disorder but the son cannot because he inherits the Y chromosome from his father
Fragile X is X gene linked
A child who has difficulty eating as an infant but then becomes overly obsessed with food is likely to have which developmental disability?
Prader-willi syndrome
______ is characterized by ‘elfin’ facial features
Williams syndrome
Which disorder is caused by the absence of material of the 7th chromosomal pair?
A) Prader-willi syndrome
B) Williams syndrome
C) Fragile X syndrome
D) Autism
Williams syndrome
What are the 4 methods of parental screening for disabilities?
Maternal serum screening (MSS): Blood sample taken and screened
Amniocentesis: amniotic fluid sample talked from sac around fetus
Chorionic villus sampling (CVS): villi sample taken from placenta
Nuchal translucency ultrasound: allows DR to see fluid from behind the fetus’ neck
Which prenatal screening is done last?
A) Nuchal Ultrasound
B) Chorionic Villus sampling
C) Aminocentesis
D) Maternal serum screening
C) Aminocentesis
What is inborn errors of metabolism?
These result from inherited deficiencies in the enzymes used to metabolize substances in the body
A child is put on a low protein died because they have the inability to covert phenylalanine into tryrosine, causing abnormal brain development. This child has _______ which is a ________ disorder
phenylketonuria (PKU); inborn error of metabolism
In _______ the head is abnormally small and conical in shape, resulting in severe to profound intellectual disability
microencephalus
______ result from the accumulation of CSF which blocks the circulation and result in excessive pressure causing an enlargement of the skull
Hydrocephalus
Which of the following environmental influences can impact development?
A) Maternal malnutrition B) Recreational drugs C) Radiation D) Maternal infections E) All of the above
E) all of the above
What are perinatal causes of developmental/intellectual disabilities?
Anoxia - lack of oxygen
Low birth weight/Premature birth
Infections
________ is an infection of the meninges and __________ is the inflammation of the brain, they are two postnatal infections that can cause intellectual disabilities
meningitis; encephalitis