Skip Navigation COURSE:  IS-3 
Fundamental Concepts
LESSON:  Biological Effects of Radiation
FEMA Emergency Management Institute
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  Signs & Symptoms of Radiation Sickness Back Next
  EMT attending to an injured person.

Two visible, potential signs of radiation sickness are nausea and vomiting. Since shock or pain can also cause nausea and vomiting, they are not necessarily an indication of radiation sickness. The symptoms must be weighed against the dose received to determine whether they indicate radiation sickness.

Another symptom is a high fever.

All three of these symptoms resemble those of many common illnesses, including the "flu" and the common cold.

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