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Weather Related
Four Physiologic Phases
1. prefreeze -cooling tissure
2. freeze-thaw -ice crystal formation, then thaw ischemia reperfusion w/ inflamatory response
3. vascular stasis -leaky vessels w/ coagulation
4. late ischemic - tissue ischemia w/ infarction
Environmental Considerations
Physiological
Hypothermia
Hyperthermia
Cold Injuries
HYPOTHERMIA
Drowning
Lightning
Neurotoxin
Myotoixin
AVALANCHE
Envenomation
Environmental Trauma
Rhabdomyolysis
Dehydration - Hypovolemia
Hyponatremia - Overhydration