BOATsmart! USA Knowledge Base

Module 06 - Other Water Activities Emergency Preparation

Hypothermia

Hypothermia is caused by prolonged exposure to abnormally low temperatures or prolonged exposure to dampness. It sets in when the internal body temperature drops to 95° (F) or lower.

Boaters can become hypothermic through:

  • Immersion in cold water.
  • Exposure to cold air and wind while wearing damp or wet clothing.
  • Prolonged exposure to cold water and air temperatures.

The Three Stages of Hypothermia:

EARLY STAGE: The person will be conscious but their speech will be slurred and they’ll be shivering violently.

INTERMEDIATE STAGE: Although still conscious, the person will be irrational, confused and sleepy. Their pulse and breathing will be weak, their muscle functions will be reduced and their movements will be uncoordinated.

FINAL STAGE: The person will begin to collapse and lose consciousness. Their pulse and breathing will be very weak and irregular at this stage.

 

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