Normal body temperature is maintained by a balance between heat production (ie, thermogenesis) and heat loss. If this thermoregulation cannot be maintained because of increased heat loss, decreased heat production, or overwhelming environmental conditions, hypothermia will manifest. There are 3 categories of hypothermia; a fourth category of profound hypothermia (< 24°C) has also been proposed.13 The 3 categories are:
Mild (core temperature 32°-35°C)
Severe (< 28°C)
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