Stages And Effects 4.3.2

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Uploaded by on Jun 9, 2009

INITIAL IMMERSION: COLD WATER "SHOCK"

If a person falls into cold water - their body's initial reaction is a 'gasp reflex' which can include hyperventilation and muscle spasms. This initial reaction can result in water inhalation as well as significant changes in heart rate and blood pressure. These initial effects are present for the first two or three minutes of immersion.




SHORT-TERM IMMERSION - IMPAIRED FUNCTION

In cold water, you may begin to experience the loss of basic motor skills after only a few minutes. Between 3 and 30 minutes after immersion a person hand's quickly lose strength and sensation and subsequently their ability to swim (even strong swimmers). In cold water immersion cases, boaters often drown as a result of swimming failure before hypothermia ever has the chance to set in.




LONGER TERM IMMERSION - IMMERSION HYPOTHERMIA

Following 30 or more minutes of immersion, hypothermia - (a drop in body temperature below the normal level) will begin to set in. The persons overall body temperature will continue to drop until it reaches the same temperature of the water. Hypothermia symptoms range from mild to severe. As the body's core temperature falls, a person will eventually lapse into unconsciousness.




POST RESCUE COLLAPSE:

A drop in blood pressure which may lead person to become unconscious or to stop breathing at the point of rescue or up to several hours afterward.

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  • @ljlassi And i mean between 0-1 degrees C.

  • You can actually reach a deadly hypothermia in just 5 minutes if the water temperature is near zero.

  • Hfhltfh

  • hey..samsonite and delilah... read a book.. shoe tree

  • as a non former security guard, miss not-quite anyones vinterest till after the fact during it would know that 14 years is right out.

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