Lung Cancer Genetic Tests Test
Lung cancer genetic tests look for gene changes in your cancer cells to help guide treatment, especially targeted therapy.
What this test measures
These tests look for changes (mutations or variants) in the genes of lung cancer cells. The most common tests are for non-small cell lung cancer (NSCLC) to find gene changes that can be treated with targeted therapies.
What your results mean
Reference ranges vary by laboratory and by your age and sex. MedlinePlus does not publish a single normal range for this test — always read your result against the range printed on your own lab report and discuss it with your provider.
Frequently asked questions
What are lung cancer genetic tests?
They are tests that look for gene changes in your lung cancer cells to help guide treatment.
Who usually gets these tests?
Most people with non-small cell lung cancer (NSCLC) get tested because it often has gene changes that respond to targeted therapies.
Are these gene changes inherited?
No, they are usually not inherited. You develop them after birth from things like tobacco smoke, radon, or air pollution.
How long does it take to get results?
It may take a few days to a week or more, longer than many other lab tests.
What if my test finds a gene change that doesn't match a targeted therapy?
Your provider will discuss other treatment options. Researchers are still learning about many gene changes.
Related lab tests
Sources
- MedlinePlus: Lung Cancer Genetic Tests — NIH MedlinePlus
Last updated . Information is aggregated from official public sources and is not a substitute for professional medical care.