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Old 04-20-2012
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Question Chance for Bipolar Disorder

A 19-year-old woman reports that she just learned that her father - whom she believed had died when she was an infant – has been institutionalized for the last 18 years with a diagnosis of bipolar disorder. What are the chances that this woman will develop bipolar disorder over the course of her life?

A) 1 %
B) 10 %
C) 20 %
D) 40 %
E) 50 %
F) 75 %
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Old 04-20-2012
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50 % ?

Not too sure since I can't recall the inheritance pattern for bipolar disorder. But I guess she has 50% chances if she gets 50% of the genes from her father ?
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Old 04-20-2012
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I don't think there is a genetic component to it...

50%
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Just came across this -

" The causes of bipolar disorder have not yet been precisely determined; however, genetics seem to play a large role. 80-90% of people diagnosed with bipolar disorder have a family history of either bipolar or major depression. "



Source: http://www.pendulum.org/causes.html
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Old 04-20-2012
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Default Answer is C

The correct answer is C.
Thanks to Hope2pass.
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Old 04-20-2012
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Bipolar and schizophrenia both have a strong genetic component. That said, it's highly unlikely that you'll get a question with this level of epidemiology on Step 1. They might ask you whether or not she's at higher risk of developing bipolar disorder, but they'll never ask you to estimate the percentage risk based on given risk factors.
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I guess its just not my day to guess...
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Old 04-20-2012
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Quote:
Originally Posted by Hope2Pass View Post
Just came across this -

" The causes of bipolar disorder have not yet been precisely determined; however, genetics seem to play a large role. 80-90% of people diagnosed with bipolar disorder have a family history of either bipolar or major depression. "



Source: http://www.pendulum.org/causes.html
Is this for all genetic diseases?
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Quote:
Originally Posted by Valkoff View Post
Is this for all genetic diseases?
No, every disease is different. You should have an understanding of the inheritance patterns of autosomal dominant/recessive diseases and X-linked dominant/recessive diseases, and you should know which one is which. Aside from those, you don't need to know the odds of getting any particular disease.
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