+ Hypothermia classification Swiss system Symptoms By degree Temperature Stage 1 Awake and shivering Mild Stage 2 Drowsy and not shivering Moderate Stage 3 Unconscious, not shivering Severe Stage 4 No vital signs Profound < Hypothermia is often defined as any body temperature below . With this method it is divided into degrees of severity based on the core temperature. Another classification system, the Swiss staging system, divides hypothermia based on the presenting symptoms which is preferred when it is not possible to determine an accurate core temperature. Other cold-related injuries that can be present either alone or in combination with hypothermia include: *Chilblains: condition caused by repeated exposure of skin to temperatures just above freezing. The cold causes damage to small blood vessels in the skin. This damage is permanent and the redness and itching will return with additional exposure. The redness and itching typically occurs on cheeks, ears, fingers, and toes.<unk> : the freezing and destruction of tissue, which happens below the freezing point of water *Frostnip: a superficial cooling of tissues without cellular destruction *Trench foot or immersion foot: a condition caused by repetitive exposure to water at non-freezing temperatures The normal human body temperature is often stated as . Hyperthermia and fever, are defined as a temperature of greater than .
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