[Indices of body resistance to overheating in the dynamics of acute radiation lesion].

Three hours after irradiation in a dose of 800 R rats proved to be less resistant to following overheating (45 degrees C) than control animals. An increase of resistance to acute overheating was revealed at the end of 3 days after the irradiation. At the height of the radiation disease (the end of the 5th day) the period of occurrence of heat stroke and the duration of rat survival failed to differ from those in the control animals. The dynamics of response to overheating correlated to some extent with that of the thyroid gland and the adrenal gland functions in the irradiated animals.