WHAT IS IT?
Hypothermia is abnormal loss of heat from the body's inner core. It is the
number one killer of outdoor recreationists. It can kill you in your boat,
in the water, or on the shore.
HOW DOES IT HAPPEN?
Hypothermia is caused by exposure to cold, aggravated by water, wind and
exhaustion.
HOW CAN I AVOID IT?
- nibble high energy foods throughout day-long trips
- avoid exposure; protect yourself from wind and water-choose clothing
with hypothermia in mind
- terminate exposure; be wise-call a halt to the trip in bad weather
conditions; get out of the wind; make a shelter; never ignore shivering
WHAT ARE THE SYMPTOMS?
Early o uncontrollable fits of shivering
Advanced o vague, slow, slurred speech
- uncoordinated movements in boat
- lack of reaction to water obstacles
- drowsiness, apparent exhaustion
Final o unconsciousness
WHAT CAN I DO?
Believe the symptoms, not the victim-a common symptom is denial.
Immediate, drastic treatment is demanded before hypothermia reaches an
advanced stage. Only prevention can save lives in the field.
Patient chilled:
- get victim out of water and wind and into warm, dry clothes; a wool
toque is especially useful as up to 50%
of body heat is lost through the head
- have the victim exercise vigorously (stride jumps,
push ups, running on the spot)
- do not let them drink alcohol!
Patient impaired, semi-conscious or worse
A patient in advanced stages of hypothermia cannot be treated in the
field. Prevent further heat loss, but do NOT try to rewarm, as this can
create a deadly medical crisis. Evacuate the patient to a hospital as
quickly as possible for medical treatment.
Watching Your Weight
Do not overload your canoe. There should always be at least 6 inches of
freeboard when fully loaded (including paddlers). Secure your gear in
waterproof containers to protect contents and increase buoyancy. Keep
weight low in the boat.
|