Acute radiation exposure is exposure to a high amount of radiation over a short period. Which statement is true?

• A. It always leads to death
• B. It involves long-term low dose exposures
• C. It involves high dose over a short period
• D. It only occurs indoors

Answer: (C)

Acute exposure means a large amount of radiation delivered quickly. The statement that matches this is that it involves a high dose over a short period. This is the defining feature: the emphasis is on how fast and how much radiation is received, not on death, location, or a low, long-term exposure pattern. The idea that it must always be fatal isn’t accurate—outcomes depend on the dose level and medical care. Chronic exposure describes long-term, low-dose intake, not a sudden high dose. And radiation exposure isn’t confined to indoors; it can occur in various environments as long as the dose is delivered rapidly.