Abstract
Summary
1. Rats which died 3 to 5 days after total-body irradiation of 809–972 r showed an elevation of oxygen consumption of about 35% occurring within 24 hours.
2. Rats which died 9 to 10 days after doses of 648 to 972 r showed an increase in metabolism of about 58% and a decline prior to death.
3. Rats which survived doses of 648 r showed an average increase in, oxygen consumption of 32% during the first week, and less pronounced increase extending over a period of at least 16 days after irradiation.
4. At doses from 54 to 432 r there was an increase in metabolism by about 8 1/2%. The maximum oxygen consumption, was reached later at sublethal rather than at lethal doses.
5. Increased metabolism did not coincide with weight loss either in time course or in dose dependence.
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