A COMPARISON OF INHALATION, SPONTANEOUS AND RAPID EXTERNAL REWARMING OF MILDLY HYPOTHERMIC SUBJECTS

Authors
  1. Romet, T.T.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
Eighty healthy males were each cooled on four occasions and then rewarmed by one of three warming procedures: by inhalation of warmed and humidified air once at 40C and once at 45C, by immersion in 40C water and by spontaneous shivering. Using rectal temperature as the measure of core temperature, the results showed that rapid external rewarming in 40C water produced the quickest rates of rewarming along with the smallest magnitude and duration of afterdrop. There were no significant differences in rewarming rate or afterdrop between inhalation rewarming and spontaneously (shivering). Inhalation rewarming led to a depressed metabolic rate as compared to spontaneous rewarming which was not compensated for by the heat provided through the respiratory tract. It is concluded that for mildly cooled subjects, the most effecient procedure of rewarming is by rapid external rewarming in 40C water.
Report Number
DCIEM-87-RR-17 — Research Report
Date of publication
15 May 1987
Number of Pages
18
DSTKIM No
87-03478
CANDIS No
52269
Format(s):
Hardcopy;Originator's fiche received by DSIS

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