If the dose of radiation exceeds a certain threshold level, then it can produce acute effects, such as skin redness, hair loss, radiation burns, and acute radiation syndrome (ARS1).
Radiation sickness (or acute radiation syndrome) usually sets in after a whole-body dose of three sieverts-3,000 times the recommended public dose limit per year, Langhorst says.
ObjectiveTo determine the clinical curative effect and safety of ultra early intravenous thrombolysis with high-dose urokinase in treatment of acute cerebral infarction.