Learning disability – 3

Published on 23/05/2015 by admin

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Last modified 23/05/2015

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24 Learning disability – 3

Regi T. Alexander

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1. The administrative prevalence of learning disability is approximately double that of its true prevalence.
2. Placental transmission of the mumps virus can cause learning disability.
3. In Angelman syndrome paternal disomy is more common than in Prader–Willi syndrome.
4. Lack of empathy is a characteristic feature of Asperger syndrome.
5. Cri du chat syndrome is caused by a deletion on the long arm of chromosome 5.
6. Down’s syndrome affects approximately 1% of live births.
7. Down’s syndrome is associated with a loss of acquired milestones.
8. Hypomania is common in Down’s syndrome.
9. Down’s syndrome is associated with hypothyroidism.
10. Fragile X syndrome is a sex-linked disorder.
11. Gaze avoidance is characteristic of Fragile X syndrome.
12. The incidence of galactosaemia is 1:200 000.
13. Hurler’s syndrome can be treated with diet.
14. Klinefelter syndrome is characterized by a long penis and large testes.
15. Lesch–Nyhan syndrome can be diagnosed prenatally by sampling amniotic fluid.
16. Niemann–Pick disease is an autosomal recessive disorder.
17. Phenylketonuria is treated with a low tryptophan diet.
18. Rett syndrome is associated with loss of acquired milestones.
19. Patients with Tay–Sachs disease usually die during childhood.
20. Most patients with tuberous sclerosis complex have normal intelligence.
21. Hypsarrhythmia is a feature of West syndrome.
22. Wilson’s disease is an autosomal recessive disorder.
23. XYY phenotype is associated with low IQ.
24. The risk of epilepsy in those with profound LD is 100 times that in the general population.
25. Somatization is common in learning disability.