initial expedition training chapter 4 – first aid and emergencies uncontrolled copy not subject to...
TRANSCRIPT
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Initial Expedition Training
Chapter 4 – First Aid and Emergencies
Uncontrolled copy not subject to amendment
Revision 1.00
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What is Exposure?
• Exposure to extreme climatic conditions• Extreme cold can lead to HYPOTHERMIA• Extreme heat can lead to HEAT STROKE or
EXHAUSTION• Climatic conditions do not need to be extreme
though!
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Hypothermia• Fall in core body
temperature• If not stopped, can lead
to unconsciousness, respiratory / cardiac failure, and death
• Younger people more likely to suffer
• UK climate as bad as the Arctic!
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Causes of Hypothermia
Cold
Exhaustion
Tiredness
Low morale
Stress
Injury (Shock)
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Causes - Weather
• If bad weather occurs, getting off the hill ASAP might not be the best move – can lead to exhaustion
• Windchill is often underestimated
• Rain makes clothes wet, added wind makes the body cool quickly!
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Causes - Exhaustion
• Brought on by trying to take on too much in one go
• Or not having sufficient reserves
• Plan carefully, take plenty of stops for rest, fluid, and energy replacement
• Don’t overdo it!
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Symptoms of Hypothermia
• Unexpected unreasonable behaviour• Complaints of coldness / tiredness• Physical / mental lethargy• Failure to respond to questions / directions• Slurring of speech• Failure to appreciate something is wrong• Failure / abnormality in vision in serious cases
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Treatment of Hypothermia
• Get casualty into shelter – tent, hut, bivvi, etc
• Remove wet clothing and replace with dry
• Put casualty into sleeping bag(s) isolated from ground
• Put another person into sleeping bag to provide warmth
• Provide warm drink• Resuscitate if required• Keep warm and still until
evacuated – may relapse
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Avoiding Hypothermia
• Use proper walking equipment and waterproofs• Monitor weather• Carry emergency food and tent• Take a good meal at start of expedition• Know how to deal with problems when they arise• PLAN PROPERLY!
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Hypothermia
The Russian Winter killed many of Napoleon’s troops:
Hypothermia turned the tide of a war.
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Effects of Heat
• Even in the UK, heat can be a problem• Serious sunburn and heat exhaustion can be
major problems• Overheating can be a problem, even on cold
days• Body must be properly ventilated, and topped up
with fluids
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Dehydration
• Body requires 2.5 litres of water per day• May rise to 5 times that amount in the hills –
12 litres if really hot!• Fluid is lost through body sweat, which cools
the shell• Also loose salt in sweat – if you loose too
much, can cause cramps• Body must be kept topped up – little and
often
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Sunburn• Skin which is not protected
can burn and blister• Protect yourself with a high-
factor barrier cream / sunblock
• Doesn’t just happen in the summer!
• High winds can produce wind burn
• Treat with Calomine Lotion, or in severe cases, seek medical attention
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Heat Exhaustion
• Symptoms:– Thirst, Fatigue,
Giddiness, Rapid pulse, High body temp, low urine output, delirium, coma, death.
• Can avoid only be keeping body fluid intake up
• Keep salt intake up too
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Heat Stroke• VERY SERIOUS• Body’s temperature
regulating system has failed
• Symptoms:– High body temp, no
sweating, skin dry to the touch, lack of coordination, coma, death.
• Sponge down with water, cool with damp cloth, immerse in cold water if possible
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Heat exhaustion and heat stroke
Heat stroke is an emergency – phone 112.
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Blisters
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Blisters
• Potentially dangerous! Don’t underestimate them
• Treat as soon as possible– Smear with antiseptic– Cover with broad plaster or
chiropody felt– Can use special blister pads– Only burst in severe cases,
and make sure skin is clean, and needle is sterile
– Change dressing daily, and at every chance, let it harden in fresh air
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Chapter 4 – Getting help