After being exposed to a dose of more than 5000 rads of radiation during a terrorist bombing, the patient's skin will show which of the following manifestations within a few days to months?
A) Erythema
B) Recurring erythema
C) Desquamation
D) Necrosis
Ans: D
Feedback: Necrosis of the skin becomes evident within a few days to months at doses of more than 5000 rads. With 600 to 1000 rads, erythema occurs; it can disappear within hours and then reappear. At greater than 1000 rads, desquamation (radiation dermatitis) of the skin occurs.
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