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Genetic testing is often done as part of a genetic consultation and as of mid-2008 there were more than 1,200 clinically applicable genetic tests available. [23] Once a person decides to proceed with genetic testing, a medical geneticist, genetic counselor, primary care doctor, or specialist can order the test after obtaining informed consent .
Myriad Genetics is already generating revenue from genetic tests for BRCA1 and BRCA2. [5] Aside from genetic testing, predictive medicine utilizes a wide variety of tools to predict health and disease, including assessments of exercise, nutrition, spirituality, quality of life, and so on.
The burgeoning field of genetic testing and analysis has provided valuable tools for identifying genetic markers associated with various diseases, allowing for proactive measures to be taken in disease prevention [32] Disease prevention via genetic testing is made easier as genetic testing can unveil an individual's genetic susceptibility to ...
Disease and disability are affected by environmental factors, genetic predisposition, disease agents, and lifestyle choices, and are dynamic processes that begin before individuals realize they are affected. Disease prevention relies on anticipatory actions that can be categorized as primal, [2] [3] primary, secondary, and tertiary prevention. [1]
For example, the ColoGuard test may be used to screen people over 55 years old for colorectal cancer. [57] Cancer is a longtime-scale disease with various progression steps, molecular diagnostics tools can be used for prognosis of cancer progression. For example, the OncoType Dx test by Genomic Health can estimate risk of breast cancer.
Traditional genetic testing involves the analysis of DNA in order to detect genotypes related to a heritable disease or phenotype of interest for clinical purposes. However, current testing methods require days to weeks before results are available limiting the clinical applicability of genetic testing in a number of circumstances.