RTBC Radiation Biology Test 2025 – 400 Free Practice Questions to Pass the Exam

Long-term exposure to ionizing radiation primarily carries the risk of increasing the likelihood of cancer development in individuals. This is due to the ability of ionizing radiation to cause damage to the DNA within cells. Over time, this damage can lead to mutations and cellular changes that enable cells to grow uncontrollably, which is a hallmark of cancer. The risk of developing cancer increases with both the amount of radiation exposure and the duration of that exposure.

While other options represent risks associated with radiation exposure, they are typically associated with more immediate effects or higher doses of radiation rather than long-term exposure. Skin burns, for instance, are generally a result of direct and acute high doses of radiation, as seen in cases of severe sunburn or radiation therapy. Acute Radiation Syndrome is a condition that occurs after a high dose of radiation over a short period and includes symptoms such as nausea, vomiting, and fatigue, but is not a concern of long-term or chronic exposure. Neurological damage, while possible in cases of very high doses of radiation, is not a common outcome of long-term exposure, which more substantially impacts the genetic integrity of cells leading to cancer.

Thus, the increased likelihood of cancer development is the most significant and well-documented risk of long-term ion