A parent tells the nurse that her brother has Tourette syndrome and she is concerned that her five-year-old son may be at risk for the same disorder. Which is the most appropriate reply?
1. There is no known genetic association in Tourette syndrome.
2. There may be a genetic predisposition for developing Tourette syndrome.
3. A person whose uncle has Tourette syndrome will definitely develop the condition.
4. We do not have any information on the hereditary factors associated with Tourette syndrome.
Answer: 2
Explanation: Genetic associations have been found in Tourette syndrome. The impact of environmental effects, heterogeneity, and other factors complicate what this means for diagnosis and treatment of children with this disorder, and no definite cause-effect relationship has been determined. Advances in genetic technology have implicated genetic associations in Tourette syndrome.
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