40 Deh ydration S tumbles freq uently U ncooperativ e and confused Ma y wish t o be lef t alone Se v ere stages Cardiac ar rest occur s when the body core t emperature cools belo w 30C 86F Shiv ering diminishes and then st ops Inappr opriat e beha vior such as remo ving clo thing Speech is slurred Re d uced hear t and respirat or y rat e and depressed brain function Irregular pulse car diac arr h ythmia Muscle rigidity U ncon sciousness T r eatment Ta k e immediat e action t o PREVENT FURTHER HEA T L OSS Ge t the vic tim int o some sor t of shelt er If there is no outdoor shelt er use what e v er is a v ailablea t ent an o v er turned canoe a space blank e t or tar p branches r ocks or sno w f or a windbreak Build a fre as soon as possible R emo v e w e t clo thes gently without e xposing bare skin t o wind or rain if possible Share dr y clo thing t o the e xt ent that no o ther member of the par ty is endangered Use blan k e ts or sleeping bags t o insulat e the body against fur ther heat loss Concentra t e on w arming the head neck chest and gr oin areas Apply heat with skint oskin contact with a health y per son or with heat fr om ho t w at er bo ttles chemical heat packs or e v en heat ed r ocks if the y are wrapped t o pre v ent burning the victims skin