NJROTC FINAL

Dehydration

You risk heat injuries anytime you  lose large amounts of water, salt or both through perspiring - and do not replace the lost fluid.

Salt

help body retain water and also lost through perspiring

Natural fabrics

Cotton, perspiration evaporates better

heat cramps → heat exhaustion → heatstroke

Overheating

Heatstroke

Medical emergency that can be fatal if not treated (stops the victim’s cooling mechanism from working)

Frostbite and hypothermia cause

prolonged exposure to low temp, wind or moisture, whether on a ski slop or in a stranded car

Wind chill

Temp of both wind speed and air temp combined and speeds up the loss of body heat and may aggravate cold injuries

Fear, fatigue and dehydration and lack of nutrition cause

Caused by stressful and increase possibility of cold injury

Wet clothing

Adds the possibility of cold injury

Depressed or unresponsive individuals

May be less active and careless about protecting themselves

Subcutaneous tissue

Deep frostbite involves freezing of this and possibly even muscle and bone

Deep frostbite

Requires extra care to reduce or avoid losing toes, hands, foots or fingers

Immersion foot and trench foot

Result from long exposure of feet to went conditions at temps between about 32-50F

Primary stage of immersion foot and trench foot

Cold, numb and painless but feel hot with burning and shooting pains

Advanced stage of immersion foot and trench foot

Pulse decreases, skin becomes pale,redness, blistering, swelling, heat, hemorrhage s and gangrene

Hypothermia

Cooling body temp below 95F by exposure to low or dropping temp, cold moisture wind, snow or ice

Snow blindness

Glare of ice field or snowfield on eyes

Deep burn

occurs if one waits for eye discomfort or pain

Dehydratoin

When body loses fluid, salt and mineral

Ventilation

circulation of air

Heat cramps

Cramping under heat or high temps with loss of sodium chloride

Heat exhaustion

When person exposed to heat over period of time from loss of water and salt

Frostbite

Injury cause dbody tissue by frost or cold

superficial

not serious

Subcutaneous

Under the skin

Insulate

use materials to protect or isolate