Genetic Test

Results

A genetic test examines the DNA (deoxyribonucleic acid) of a person's cells. Genetic testing can identify abnormal genes, or analyze the number, arrangement, and characteristics of the chromosomes.

The results of genetic testing depend on the type of test done. Genetic testing is used to:

• Diagnose an inherited disease.
• Provide information about how likely it is that you will develop a disease in the future.
• Determine whether you are a carrier of the disease.
• Provide information about the severity of an inherited disease.
• Help choose appropriate treatment for some diseases, such as HIV infection or some types of cancer.

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Author:	Maria G. Essig, MS, ELS	Last Updated: April 20, 2009
Medical Review:	Joy Melnikow, MD, MPH - Family Medicine Siobhan M. Dolan, MD, MPH - Reproductive Genetics
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