3.4 Learning Disability Flashcards Preview

Psychiatry- Carol > 3.4 Learning Disability > Flashcards

Flashcards in 3.4 Learning Disability Deck (26):
1

What is the IQ for Mild Learning Disability?

50-69

2

What is the IQ for Mild Learning Disability?

50-69

3

What is the IQ for Moderate Learning Disability?

35-49

4

What is the IQ for Severe Learning Disability?

20-34

5

What is the IQ for Profound Learning Disability?

0-19

6

What % of the population has an IQ below 70?

3%
This is 2 SD below the mean

7

What is the IQ for Moderate Learning Disability?

35-49

8

What is the IQ for Severe Learning Disability?

20-34

9

What is the IQ for Profound Learning Disability?

Less than 20

10

What is the IQ for Borderline Learning Disability?

70+

11

What % of the population has an IQ below 70?

3%

12

How is IQ calculated?

IQ= Mental age/Chronological age x 100%

13

What is the most commonly used tool to diagnose Learning Disability?

Weschler Adult Intelligence Scale- WAIS

Others include: Stanford Binet, Raven's Progressive Matrices

14

What are the features of Mild LD? (IQ 50-69)

Mental age 9-

15

What are the features of Borderline LD? (IQ 70-84)

Mental age 12-

16

What are the features of Moderate LD? (IQ 35-49)

Mental age 6-

17

What are the features of Severe LD? (IQ 20-34)

Mental age 3-

18

What occurs in Prader-willi 15Q mutation (paternally derived)?

LD
Overeating
Self-injurious behaviour

19

What occurs in Velo-Cardiofacial syndrome 22Q?

50% have LD
increased risk of schizophrenia

20

What are the trichromosomal abnormalities that cause LD?

Downs syndrome- Trisomy 21, IQ 30-55 (Severe-Moderate LD)
Patau syndrome- Trisomy 13
Edwards syndrome- Trisomy 18

21

What occurs in cri du chat 5p mutation?

Microcephaly
severe/profound LD (IQ 0-34)

22

What occurs in Angelman 15Q mutation (maternally derived)

LD
ataxia
paroxysms of laughter

23

What occurs in Prader-willi 15Q mutation (paternally derived)?

LD
Over-eating
self-injurious behaviour

24

Which sex chromosomal abnormalities are associated with LD?

45XO - Turner's. LD rare
47XXX- Trisomy X
XXY- Klinefelter
XYY Male- IQ may be slightly lower
Fragile X -mutation is due to faulty FMR1 gene

25

What other genetic causes of LD are there?

PKU
mucopolysaccharidoses
neurolipidoses
tuberous sclerosis
congenital hypothyroidism
Lesch nyhan syndrome- X linked (eastern european jewish cluster as well as others)

26

What pre-natal maternal infections are associated with LD?

Rubella
CMV
Toxoplasmosis