Chapter 19

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Chapter 19: Heat- and Cold-Related Emergencies Introduction  When the body is overwhelmed in its attempt to regulate body temperature, a heat- or cold-related emergency can occur.  They can happen anywhere - indoors or out under a variety of conditions  The signals are progressive and quickly can become life threatening.  A hot or cold emergency can happen even when temperatures are within normal limits  Humidity, wind, clothing, living and working environments, physical activity, age and
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  Chapter 19: Heat- and Cold-RelatedEmergencies  2 AMERICAN RED CROSS FIRST AID–RESPONDING TO EMERGENCIES FOURTH EDITIONCopyright © 2005 by The American National Red CrossAll rights reserved. Introduction  When the body is overwhelmed in its attempt to regulate bodytemperature, a heat- or cold-related emergency can occur.  They can happen anywhere - indoors or out under a variety of conditions  The signals are progressive and quickly can become lifethreatening.  A hot or cold emergency can happen even when temperatures arewithin normal limits  Humidity, wind, clothing, living and working environments,physical activity, age and health all play a role in determining anindividual's susceptibility.  3 AMERICAN RED CROSS FIRST AID–RESPONDING TO EMERGENCIES FOURTH EDITIONCopyright © 2005 by The American National Red CrossAll rights reserved. How body Temperature is Controlled  In order for the body to be efficient, the human body mustmaintain a constant temperature.  Normal body temperature is 98.6°F (37°C)  4 How Body Temperature Is Controlled continued    When the body gets too hot…  When the body gets too cold…
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