Dulcan’s Textbook of Child and Adolescent Psychiatry-Chapter
7 Intellectual Disability
What was enacted on October 5, 2010, thereby stripping the terms mental retarda on and mentally
retarded from federal health, educa on, and labor policy and replacing them with the terms intellectual
disability and individual with an intellectual disability? - Rosa's Law
What differen ates neurocogni ve disorders from intellectual disability? - Loss of cogni ve func on
(when the onset of intellectual disability occurs a er a period of normal func oning or a er age 18 years
the diagnosis is o en demen a)
Intellectual disability is present in what percentage of the child and adolescent popula on? - 1-3%
(approximately 20% more males than females are diagnosed but the ra o decreases as IQ decreases)
What is the greatest risk factor for mild intellectual disability in children? - Low socioeconomic status
What are the strongest risk factors for intellectual disability of unknown e ology? - Mothers older than
35 years, Black mothers, low birth weight, maternal epilepsy, and preterm birth
What are the common clinical features of an individual with 16p11.2 dele on syndrome? - Deficits in
expressive language, seizures, posterior fossa malforma ons (Chiari I), and predisposi on toward
obesity.
What chromosomal microdele on carries the highest gene c risk for developing schizophrenia? -
DiGeorge (22q11.2 dele on) syndrome
What are the common clinical features of an individual with DiGeorge (22p11.2 dele on) syndrome? -
Cardiac anomalies, palatal abnormali es,
7 Intellectual Disability
What was enacted on October 5, 2010, thereby stripping the terms mental retarda on and mentally
retarded from federal health, educa on, and labor policy and replacing them with the terms intellectual
disability and individual with an intellectual disability? - Rosa's Law
What differen ates neurocogni ve disorders from intellectual disability? - Loss of cogni ve func on
(when the onset of intellectual disability occurs a er a period of normal func oning or a er age 18 years
the diagnosis is o en demen a)
Intellectual disability is present in what percentage of the child and adolescent popula on? - 1-3%
(approximately 20% more males than females are diagnosed but the ra o decreases as IQ decreases)
What is the greatest risk factor for mild intellectual disability in children? - Low socioeconomic status
What are the strongest risk factors for intellectual disability of unknown e ology? - Mothers older than
35 years, Black mothers, low birth weight, maternal epilepsy, and preterm birth
What are the common clinical features of an individual with 16p11.2 dele on syndrome? - Deficits in
expressive language, seizures, posterior fossa malforma ons (Chiari I), and predisposi on toward
obesity.
What chromosomal microdele on carries the highest gene c risk for developing schizophrenia? -
DiGeorge (22q11.2 dele on) syndrome
What are the common clinical features of an individual with DiGeorge (22p11.2 dele on) syndrome? -
Cardiac anomalies, palatal abnormali es,
