A patient with bipolar disorder asks what caused the illness. What should the nurse respond about the genetic transmission of the disorder?
1. Bipolar disorder is caused by environmental factors.
2. There is one single gene responsible for bipolar disorder.
3. There is no known cause for the development of bipolar disorder.
4. There appears to be a genetic link in the transmission of bipolar disease.
4. There appears to be a genetic link in the transmission of bipolar disease.
Explanation: 4. Genetic abnormalities have been found for bipolar disorder. The environment acts in concert with genotype for the expression of mental disorders. There is no single gene responsible for any mental disorder. The exact cause of bipolar disorder is not known, but there appear to be genetic factors.
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