1 cold stress organization presenter’s name contact
TRANSCRIPT
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Cold StressOrganization
Presenter’s NameContact
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Body temperature considered normal at or near 98.6° F
Cold stress occurs when body temperature drops below 95° F
Cold Stress
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Respiration Evaporation Conduction Radiation Convection
Body Heat Loss
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Cold kills in two distinct steps Exposure
cold wind
Exhaustion
Hypothermia
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Predisposed health conditions cardiovascular disease diabetes hypertension
Medications Poor physical conditioning
Increased Risk
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Body temperature: 97° to 93° F Shivering Alert Limbs numb, loss of dexterity, clumsiness Pain
Mild Hypothermia
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Prevent further heat loss Give warm, sweet liquids Apply gentle heat source Exercise to generate heat Keep head and neck covered
Mild Hypothermia - First Aid
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Body temperature: 93° to 90° F Shivering (may decrease or stop) Alert Limbs numb, loss of dexterity, clumsiness Pain
Moderate Hypothermia
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Moderate Hypothermia - First Aid
Prevent further heat loss
Keep head and neck covered
Apply gentle heat source
Limit exercise
Give sips of warm liquids if victim fully conscious
No alcohol Checked by
medical personnel
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Body temperature 90° to 82° F Shivering decreased or stopped Confusion and loss of reasoning Speech slurred Semi-conscious/unconscious Muscles rigid
Severe Hypothermia
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Victim is in serious trouble Treat for shock Apply external heat source Avoid jarring victim No food or drink Transport to hospital
Severe Hypothermia - First Aid
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Body temperature: < 82° F Unconscious and may appear dead Breathing shallow Pulse slow Pupils (eyes) dilated Body rigid
Critical Hypothermia
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Don’t give up Handle with extreme care Tilt head to open airway Perform CPR Stabilize temperature with external heat
source Hospitalize as soon as possible
Critical Hypothermia - First Aid
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Wear adequate head covering Wear layered clothing Protect feet and hands, wear gloves or
mittens Drink plenty of fluids Pace all activities in the cold Limit exposure time
Protection From Hypothermia
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Recognize conditions that lead to cold-induced injuries and illnesses
Learn the signs and symptoms of cold-induced injuries and illnesses
Train all personnel Select proper clothing and protective
equipment Take frequent breaks in warm area
How to Protect
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Perform work in warmer part of day Avoid exhaustion and fatigue Use the buddy system Drink warm beverages, avoid caffeine Eat warm, high-caloric foods
How to Protect
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Body heat loss is 25-times faster in water than in cold air
Swimming increases heat loss by 35% H. E. L. P. reduces heat loss HUDDLE extends survival time by 50%
Hypothermia in Water
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Water Immersion Survival
Water Temperature Exhaustion Survival TimeDegrees in Fahrenheit
32.5 15 minutes 15 - 45 minutes
32.5 - 40 15 - 30 minutes 30 - 90 minutes
40 - 50 30 minutes - 1 hour 1 hour - 3 hours
50 - 60 1 hour - 2 hours 1 hour - 6 hours
60 - 70 2 - 7 hours 2 - 40 hours
70 - 80 3 - 12 hours 3 hours - indefinite
> 80 Indefinite Indefinite
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Heat Escape Lessening Posture
H. E. L. P.
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Extends survival time by 50% over swimming or treading water
HUDDLE
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Freezing of deep layers of skin Pale, waxy-white skin color Skin becomes hard and numb Usually affects:
Fingers and hands Toes and feet Ears and nose
Frostbite
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Move victim to warm dry area Remove wet or tight clothing Do not rub affected areas Gently place affected area in warm water Seek medical attention
Frostbite - First Aid
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Questions?