1 / 27

Hypothermia

Hypothermia. We Will Cover. What is Hypothermia How the body is affected by the cold The unprotected swimmer Our body's own insulation Symptoms of Hypothermia Treatment Prevention Summary. What is Hypothermia?. Body core temperature drops below 37°C

Download Presentation

Hypothermia

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Hypothermia

  2. We Will Cover • What is Hypothermia • How the body is affected by the cold • The unprotected swimmer • Our body's own insulation • Symptoms of Hypothermia • Treatment • Prevention • Summary

  3. What is Hypothermia? • Body core temperature drops below 37°C • Water has 25 times greater heat conduction than air • Water requires 1,000 times more energy to heat than air • Diving in any of the world’s seas can reduce diver’s core body temperature

  4. How does it affect the body? • Hypothalamus • Located in the brain • Body’s temperature control regulator • Increased secretion of urine • Goose pimples • Vasoconstriction • Metabolism increased • Shivering

  5. Survival expectancy related to water temperature without Insulation Time in water (hours) Water temp (°C) Cold, Wet, Wind, Fatigue = Killer/ Hypothermia

  6. Body Fats Protect! • Areas of greatest heat loss are... • Head • Neck • Sides • Groin • Women survive longer than men in cold water

  7. Clinical Features • Blue pallor, numbness = 36.5°C • Violent shivering = 36°C • Confusion, poor decision making, uncontrollable shivering = 35°C • Clumsy, loss of co-ordination and dexterity = 34°C • Shivering ceases - Muscles SpasmsLoses use of arms and legs = 33°C

  8. Clinical Features • Victim appears drunk or drugged = 32°C • Loss of Consciousness = 30°C • Cessation of Heartbeat & Breathing which leads to death = 28°C

  9. Treatment • Remove the victim from cold water and dress them in dry clothing (if available) • Keep victim in “Huddle” position • Rewarm with survival bag or by body heat of others • Give warm drinks if available (soup) • Never Give Alcohol

  10. Treatment • Severe Cases: Rewarm in (42ºC) bath under medical supervision • C.P.R. if necessary • Reheating is complete when victim starts to sweat

  11. Prevention • Wear good insulating garments (diving suits, headgear and windcheaters) • Reduce exercise in water to conserve strength and reduce heat loss • Acclimatisation to cold over long periods

  12. Summary • What is Hypothermia • How the body is affected by the cold • The unprotected swimmer • Our body's own insulation • Symptoms of Hypothermia • Treatment • Prevention

  13. Questions

  14. What is hypothermia ? • Higher than normal body temp • Normal body temp • Lower than normal body temp

  15. What is hypothermia ? • Higher than normal body temp • Normal body temp • Lower than normal body temp

  16. What is the normal body core temp? • 36°C • 37°C • 38°C

  17. What is the normal body core temp? • 36°C • 37°C • 38°C

  18. Where in the body is the hypothalamus located? • Finger Tips • Brain • Behind the Maxillary sinus

  19. Where in the body is the hypothalamus located? • Finger Tips • Brain • Behind the Maxillary sinus

  20. What combination could to lead to hypothermia? • Cold, wet, wind, fatigue = Hypothermia • Wet, cold, breeze, fatigue = Hypothermia • Wet, mild, wind, fatigue = Hypothermia • All of the above

  21. What combination could to lead to hypothermia? • Cold, wet, wind, fatigue = Hypothermia • Wet, cold, breeze, fatigue = Hypothermia • Wet, mild, wind, fatigue = Hypothermia • All of the above

  22. Does subcutaneous fat • Help the body against the cold • Create goose pimples • Turn the hands blue when cold

  23. Does subcutaneous fat • Help the body against the cold • Create goose pimples • Turn the hands blue when cold

  24. In severe cases where the victim had to be immersed in a bath of warm water, how warm should the water be? • 37°C • 40°C • 42°C

  25. In severe cases where the victim had to be immersed in a bath of warm water, how warm should the water be? • 37°C • 40°C • 42°C

  26. When is heating complete? • After a long warm sleep • After a nice bowl of hot soup • When the victim starts to sweat

  27. When is heating complete? • After a long warm sleep • After a nice bowl of hot soup • When the victim starts to sweat

More Related