“Does a CT scan involve exposure to radiation?”

Yes, CT scans use radiation, but modern imaging techniques strive to use the lowest effective dose. The benefit of accurate diagnosis—especially for detecting internal bleeding, tumors, infections, or vascular issues—far outweighs the small risk for most patients

Hi! A CT scan does involve radiation. Perhaps I can explain how much. Radiation is measured in millisieverts (mSv). Over one year, the average person in the United States is exposed to 3 mSv of radiation from natural sources (radon gas, airline travel exposure, etc.) The average CT scan is 10 mSv. This is more than one average years' worth of radiation. Radiation exposure from all sources can add up over a lifetime, and radiation can, indeed, increase cancer risk, imaging tests that use radiation should only be done for a good reason. I would recommend discussing with your ordering provider if it there is an alternative test you could perhaps undergo, or ask them to explain why CT scan would be best, so you can make an informed decision on how to move forward with your health. I hope this is helpful. Christen Kemp, DNP, FNP-BC Information above is synthesized from the American Cancer Society (2018); full details available at: 8383.00.pdf<https://www.cancer.org/content/dam/CRC/PDF/Public/8383.00.pdf>