What is a false negative result?
No test, including the lung cancer screening, is perfect. It is possible that you may have a medical condition, including lung cancer that is not found during your exam. This is called a false negative.
Is it possible the test could identify another health issue?
Your lung cancer screening exam also captures images of areas of your body next to your lungs. In a small percentage of cases (approximately 5-10 percent), the CT scan will show an abnormal finding in one of these areas, such as your kidneys, adrenal glands, liver, heart vessels or thyroid. This finding may not be serious, but you may need to be examined further. Your healthcare provider who ordered your exam can help determine what, if any, additional testing you need.
Should I be concerned about radiation exposure?
A lung cancer screening test uses radiation to create images of your lungs. Radiation can increase a person's risk of cancer. By using special techniques, the amount of radiation in low-dose CT lung cancer screening is minimized – about the normal amount received from the sun in a year. Further, your physician has determined the benefits of the screening outweigh the risks of being exposed to the small amount of radiation from this exam.