Genetic testing is an essential tool utilized by healthcare professionals to pinpoint specific gene mutations that may increase your risk of developing cancer. This process often includes DNA testing, offering comprehensive insights into your genetic composition.

Genes serve as the blueprint for all your physical characteristics — such as hair color, eye color and height. Inherited from your biological parents, any alterations or mutations in these genes can lead to the uncontrolled cell growth associated with cancer.

These mutations can be detected through various methods, including genetic screening, which plays a critical role in early detection and prevention strategies. Consulting with a genetic counselor can enhance your understanding of these results.

Predictive genetic testing at Tanner

Predictive genetic testing aims to identify gene mutations that might increase your likelihood of developing certain cancers. This testing often involves thorough genetic screening and is best undertaken with guidance from a genetic counselor.

It is especially recommended if there is a strong family history of specific cancers, such as mutations in the BRCA1 and BRCA2 genes, which are known to elevate the risk of breast and some gynecologic cancers.

If you have or have had cancer, predictive genetic testing might be suggested to evaluate your risk of developing other cancers in the future. This information can also help family members decide whether to undergo predictive genetic testing themselves, often following a consultation with a genetic counselor.

Arranging for predictive genetic testing can be done through your physician, with the added support of genetic counseling.

Genetic testing if you have cancer

For those diagnosed with cancer, genetic testing can provide valuable information.

Beyond determining your risk for other cancers, genetic testing can offer insights into potential treatment paths. With ongoing research linking certain genetic mutations to treatment effectiveness, understanding your genetic profile can assist your cancer care team in recommending specific chemotherapy or immunotherapy options.

Genetic Testing Frequently Asked Questions

What is the best age to get genetic testing?
The ideal age for genetic testing depends on individual and family medical history. Consulting with a healthcare provider or genetic counselor is recommended to determine the best timing.

What are 10 hereditary diseases?
Ten common hereditary diseases include cystic fibrosis, sickle cell anemia, Huntington's disease, hemophilia, Tay-Sachs disease, muscular dystrophy, phenylketonuria, thalassemia, neurofibromatosis and Marfan syndrome.

What is the downside to genetic testing?
Potential downsides to genetic testing include emotional distress, privacy concerns, and the possibility of uncertain results. Discussing these issues with a healthcare provider or genetic counselor is crucial.

How long do genetic test results take?
The time required for DNA testing results can vary from several weeks to months, depending on the test type and laboratory processing times.

What qualifies you for genetic testing?
Eligibility for genetic testing often involves a personal or family history of specific diseases or belonging to a population group with a higher prevalence of certain genetic conditions. Consulting with a healthcare provider or genetic counselor can provide valuable insights.