What are short-term effects of radiation exposure?

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Multiple Choice

What are short-term effects of radiation exposure?

Short-term effects after exposure occur when a large amount of ionizing radiation is absorbed in a short period, causing Acute Radiation Syndrome. This happens because such a high dose rapidly damages the body's fast-dividing cells, especially in the bone marrow and the lining of the gastrointestinal tract. Symptoms begin within hours to days and worsen with dose: early signs like nausea, vomiting, and fatigue; later, immune suppression leading to infections and bleeding, along with possible hair loss and skin changes. The other ideas don’t fit because chronic effects develop over years, and immediate tissue swelling in all organs or allergic-like skin reactions aren’t the characteristic acute pattern of high-dose exposure.

Short-term effects after exposure occur when a large amount of ionizing radiation is absorbed in a short period, causing Acute Radiation Syndrome. This happens because such a high dose rapidly damages the body's fast-dividing cells, especially in the bone marrow and the lining of the gastrointestinal tract. Symptoms begin within hours to days and worsen with dose: early signs like nausea, vomiting, and fatigue; later, immune suppression leading to infections and bleeding, along with possible hair loss and skin changes. The other ideas don’t fit because chronic effects develop over years, and immediate tissue swelling in all organs or allergic-like skin reactions aren’t the characteristic acute pattern of high-dose exposure.

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