Hypothermia Clinical features

• Above 33°C — shivering is usually marked in an attempt to correct body temperature.

• Below 33°C — neurological signs of dysarthria and slowness appear.

• Below 31°C — hypertonicity and sluggish reflexes with cardiovascular dysfunction become life threatening.

• Below 28°C — arterial pulses often become impalpable. Hypothermic rigidity is difficult to distinguish from death.

• Prognosis depends on the degree and duration of hypothermia.

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