In Norway (as I am sure, they do elsewhere) they are working a lot with how to treat hypothermia and not even the medical profession are clear on how to treat it since the treatmeant actually varies between patients. There is not one universal method of treating hypothermia.

An small excerpt from a statement made here: http://www.ntnu.no/gemini/2011-01/7.htm


"-So far, the results show that it is essential that the rescuers wrap the patients in a vapor barrier before they are being wrapped in blankets. The explanation is that since the cooled patients often are wet, you lose a great deal of body heat to the blankets and the environment through evaporation, rather than remain in the body."