Answer: E - A cardiovascular and central nervous system syndrome with refractory hypotension and circulatory collapse, resulting in death within 24-72 hours, typically occurs at doses of 2000-3000 rads. Typically, acute radiation poisoning at 600 rads has an onset of prodrome within hours, has a latent phase duration of less than a week, and causes a gastrointestinal syndrome that usually results in death within a week. Immediate emergency treatment at a speciality facility is the best course of action.
This table summarizes some of the impacts of different rads:
25 rad: lowest dose to cause clinically observable blood changes
200 rad: local dose for the onset of erythema in humans
400 rad: whole body LD50 for acute radiation syndrome in humans
1 krad: whole body LD100 for acute radiation syndrome in humans
2-3 krad: A cardiovascular and central nervous system syndrome with refractory hypotension and circulatory collapse, resulting in death within 24-72 hours
1 to 20 krad: typical radiation tolerance of ordinary microchips
4 to 8 krad: typical radiotherapy dose, locally applied
10 krad: fatal whole-body dose in 1964 Wood River Junction criticality accident
1 Mrad: typical tolerance of radiation-hardened microchips
