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7 Cards in this Set
- Front
- Back
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Hypothermia
4 ways heat can be lost from the body |
Radiation
Conduction Convection Evaporation |
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Normal body tempature
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37 Deg C
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Human body's defences against cold
3 |
Internal production of heat through metabolism
Muscular activity in the form of exercise or the involuntary process of shivering Decrease heat lost to the enviroment via the closing down of blood flow to th e bodys extremities |
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Body temperature in mild to moderate Hypothermia
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35 - 30 deg C
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Symptoms
Conscious but becoming confused, often anxious or irritable, lethargic and apathetic. Slow decline in abillity to co-ordinate and move there muscles, therefore may appear to stagger and sway on their feet. Skin will feel cold and may appear pale and cyanosed Heart and respiratory rate will become increasingly slow and weak and pupils dilated |
Mild to moderate Hypothermia
Shivering only evident in the Initial period of mild Hypothermia |
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Symptoms
They will become unconscious The skin will be ice cold to touch and often appear white or bluish in colour. The Muscles will become rigid Heart rate will be slow ( often as low as 40bpm) Blood pressure will often be impossible to obtain. Respiratory rate will be extremely slow and shallow. Pupils will become dilated and often not react to light. |
Severe Hypothermia < 30 deg C
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Body Temparatue of severe hypothermia
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< 30 deg C
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