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Huntington's Disease Genetic Test - What Is the Test?
You give a blood sample, which is screened for the gene change. As part of the test, a close family member-preferably a parent-also may have to give a blood sample. That person's DNA is studied to look for the disease. Testing a family member also may be important in case your family's DNA is unusual in some way that might affect the test result.
WebMD Medical Reference from Healthwise
Last Updated:
December 13, 2006
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