Lung Cancer Genetic Tests

What is a Lung Cancer Genetic Test?

Lung cancer genetic tests are tests that look at a person’s DNA to understand which genes may contribute to their risk for developing lung cancer. This testing can help identify which people are more likely to develop the disease. It can also help physicians identify the best way to treat those with the disease.

Preparation for a Lung Cancer Genetic Test

You may need to discuss the benefits and potential risks and limitations of testing with your doctor prior to getting tested. If you have already been diagnosed with lung cancer, your doctor can provide you with information on the most appropriate test for your situation.

Procedure for the Testing

Your genetic testing may be done through a saliva sample or through a blood sample. The results usually come back in a few weeks. Once you receive your results, you should discuss them with your doctor.

Types of Lung Cancer Genetic Tests

There are several types of genetic tests used to diagnose and treat lung cancer. The most common are the EGFR (epidermal growth factor receptor) mutation test, the KRAS (KRüppel-like factor 4) mutation test, and the ALK (anaplastic lymphoma kinase) mutation test.

Risks of Lung Cancer Genetic Tests

There is a small risk of genetic testing, such as a small risk of an incorrect result or an adverse reaction to the testing process. It is important to discuss any concerns with a health care provider before deciding to have or not have a test.

When to Have a Lung Cancer Genetic Test

If you have a family history of lung cancer, you may be a candidate for genetic testing. In addition, if you have already been diagnosed with lung cancer, a genetic test may be recommended to determine the best treatment option for you.

Why Have a Lung Cancer Genetic Test?

Lung cancer genetic testing can help identify which people are more likely to develop the disease. Understanding a patient's personal risk of lung cancer may help them make better informed decisions regarding their care and treatment. It can also help physicians identify the best way to treat those with the disease.