Want create site? Find Free WordPress Themes and plugins.OUTDOOR RECREATION: Exposure to hypothermia in wilderness recreation, includes canoeing, kayaking, marine, ...Read More
The growing popularity of outdoor recreation, has resulted in greater demand for an effective on-site method of treating hypothermia.Other than for mild cases, the most effective and safest treatment for all levels of hypothermia is the addition of heat to the body core, rather than via the periphery.
Research on hypothermia conducted at the University of Victoria (Victoria, B.C., Canada) developed the survival behaviors such as the HELP – and the – HUDDLE – survival positions, now promoted world wide.
Heat exhaustion: This condition often occurs when people exercise (work or play) in a hot, humid place and body fluids are lost through sweating, causing dehydration and overheating of the body. The person’s temperature may be elevated, but not above 104 F (40 C).
Heat stroke: Heat stroke, also referred to as heatstroke or sun stroke, is a life-threatening medical condition. The person’s cooling system, which is controlled by the brain, stops working and the internal body temperature rises to the point at which brain damage or damage to other internal organs may result (temperature may reach 105 F or greater [40.5 C or greater]).
Nearly 700 people die each year due to heat-related illness, according to the U.S. Centers for Disease Control and Prevention. Avoid heat exhaustion by not engaging in strenuous activity in hot, humid environments; and stay hydrated as prevention is the key.
Heat Exhaustion and Heat Stroke Causes
Heat exhaustion is typically caused when people who are not well adjusted to heat exercise or work in a hot, humid environment.
At high temperatures, the body cools itself largely through evaporation of sweat.
When it is very humid, this mechanism does not work properly.
The body loses a combination of fluids and salts (electrolytes).
When this is accompanied by an inadequate replacement of fluids, disturbances in the circulation may result that are similar to a mild form of shock.
Heat stroke may often develop rapidly.
Medical conditions or medications that impair the body’s ability to sweat may predispose people to this problem.
Heat stroke happens in the following two ways:
The classic form occurs in people whose cooling mechanisms are impaired.
The exertional form occurs in previously healthy people who are undergoing strenuous activity in a hot environment.
Infants, children under the age of 4, the overweight, and the elderly are more likely to have this problem, as are those who are taking antihistamines and certain types of medication for high blood pressure, heart disease, or depression.
Heat Exhaustion and Heat Stroke Symptoms
Often pale with cool, moist skin
Muscle cramps or pains
Feels faint or dizzy
May complain of headache, weakness, thirst, and nausea
Core (rectal) temperature elevated-usually more than 100 F (37.7 C) and the pulse rate increased
Heat stroke symptoms
Unconscious or has a markedly abnormal mental status (dizziness, confusion, hallucinations, or coma)
Flushed, hot, and dry skin (although it may be moist initially from previous sweating or from attempts to cool the person with water)
May have slightly elevated blood pressure at first that falls later
May be hyperventilating
Rectal (core) temperature of 105 F (40.5 C) or more
When to Seek Medical Care
As with all other medical problems, a doctor should be called if you are not sure what is wrong, if you do not know what to do for the problem, or if the person is not responding to what you are doing for them.
Call a doctor for heat exhaustion if the person is unable to keep fluids down or if their mental status begins to deteriorate. Symptoms of shortness of breath, chest pain, or abdominal pain may indicate that the heat exhaustion is accompanied by more serious medical problems.
Suspected heat stroke is a true, life-threatening medical emergency. Call for an ambulance and request information as to what to do until the ambulance arrives.
A person with suspected heat stroke (sun stroke) should always go to the hospital (or call for an ambulance) at once.
For heat exhaustion, a person should go to the hospital if any of the following are present:
Loss of consciousness, confusion, or delirium
Chest or abdominal pain
Inability to drink fluids
Temperature more than 104 F (40 C)
Temperature that is rising despite attempts to cool the person
Any person with other serious ongoing medical problems
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Staying warm in cold weather
Wear a hat or other protective covering
to prevent body heat from escaping.
Overexertion. Avoid activities that would cause you to sweat a lot
Layers. Wear loosefitting, layered, lightweight
clothing. Stay as dry as possible.
Want create site? Find Free WordPress Themes and plugins.Symptoms of hypothermia The symptoms of hypothermia can vary depending on how ...Read More
Want create site? Find Free WordPress Themes and plugins.It has been stated that there is no longer any excuse for ...Read More
We used your RES-Q-AIR unit on a severely hypothermic patient. My patient was a twenty-five year old male who had been treading water in Georgia Strait for three and a half to four hours before being recovered. Thank you for supplying us with this most valuable piece of equipment.