What is a consequence of exposure to high doses of radiation?

Acute radiation syndrome is a condition that occurs when an individual is exposed to a high dose of radiation in a short period. This syndrome is characterized by immediate and severe effects on health, which can include symptoms such as nausea, vomiting, fatigue, and even death, depending on the level of exposure. The biological effects happen because high doses of radiation can damage or kill cells in the body, particularly those in rapidly dividing tissues such as the gastrointestinal tract, bone marrow, and skin.

In contrast, while cancer, blood disorders, and genetic mutations can be long-term consequences of radiation exposure, they typically result from lower doses or chronic exposure over time. Acute radiation syndrome reflects the acute impacts of massive doses, making it the most immediate and severe outcome following significant radiation exposure.