A person subjected to 50 Gy to the whole body may survive for how long before death occurs?

When a person receives a dose of 50 Gy (Gray) to the whole body, this level of exposure is significantly high and would result in acute radiation syndrome. Typically, doses above 30 Gy are associated with lethal outcomes without medical intervention, while 50 Gy is generally considered to be fatal.

In this context, the survival time after exposure to such a high dose of radiation tends to be very limited. Research indicates that individuals exposed to approximately 50 Gy might survive for a few days; a time frame of around 3 days is often cited based on historical cases and studies on radiation exposure. During this period, the person would likely exhibit severe symptoms and deteriorate rapidly due to the overwhelming effects on the body's systems, particularly the bone marrow, gastrointestinal tract, and central nervous system.

Therefore, if the question is about the expected survival period after being exposed to this critical dose of radiation, the correct choice of around 3 days aligns with established medical knowledge regarding the effects of high-dose radiation on human health.