Radiology Practice Test 2025 – 400 Free Practice Questions to Pass the Exam

Increasing the distance from the radiation source is a fundamental principle in radiation safety known as the inverse square law. This law states that the intensity of radiation is inversely proportional to the square of the distance from the source. By increasing the distance, the individual’s exposure to radiation decreases significantly. This is a practical method used in various radiology procedures and helps protect both patients and healthcare workers from unnecessary radiation exposure.

For instance, during fluoroscopy or X-ray procedures, radiologic technologists are encouraged to stand as far away as possible from the source of radiation while still maintaining the ability to perform their duties effectively. Using lead shields or positioning equipment efficiently can also help maximize distance and minimize exposure.

The other methods mentioned, while they might contribute to safety, do not directly relate to distance. Larger radiation doses would actually increase exposure rather than minimize it. Decreasing the duration of exposure can reduce radiation dose but is often not feasible in certain procedures where sufficient imaging time is needed for quality. Utilizing non-radiative imaging techniques is an alternative, but that is not a method of minimizing radiation exposure specifically during a radiology procedure that utilizes radiation. Therefore, increasing the distance is a reliable and scientifically supported method for reducing radiation exposure.