What is one potential risk associated with ionizing radiation in medical imaging?

One potential risk associated with ionizing radiation in medical imaging is the development of radiation-related illnesses over time. Ionizing radiation has enough energy to remove tightly bound electrons from atoms, which can damage or alter cellular DNA. This damage can lead to mutations that, over prolonged exposure, may contribute to the development of various health issues, including cancer. The risk is particularly significant with cumulative exposure over time, as even low doses of radiation can have a biological effect, especially in sensitive populations such as children or individuals receiving repeated imaging studies.

The other choices do not accurately represent risks linked to ionizing radiation in medical imaging. Increased patient mobility is not a risk but rather a desired outcome in many medical situations. Immediate discomfort during imaging can occur due to positioning or other factors but is not a direct risk of ionizing radiation itself. Changes in the imaging equipment lifespan might be a concern regarding maintenance and operational costs; however, this does not pertain to the health risks posed to patients by ionizing radiation.