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Emergency MR

McGraw-Hill Emergency Medical Responder 2nd Edition Ch.33

Body temperature The balance between the heat produced by the body and the heat lost from the body.
Hypothalamus Functions as the body's thermostat.
The body regulates core temperature through Vasodilation, vasoconstriction, sweating, shivering, an increase or decrease in activity, and behavioral responses.
The chemical reactions that occur within a living organism that convert food to energy. Metabolism
5 ways the body loses heat to the environment. Radiation, Convection, Conduction, Evaporation, and Respiration
Radiation The transfer of heat, as infrared heat rays, from the surface of one object to the surface of another without contact between the 2 objects.
The transfer of heat by the movement of air current. Convection
Conduction The transfer of heat between objects that are in direct contact.
A loss of heat by vaporization of moisture on the body surface. Evaporation
Hypothermia A core body temperature of less than 95 degrees F (35 degrees C), resulting in the body loses more heat than it gains or produces.
Core body temperature 93.2*F to 96.8*F, or 34.0*C to 37.0*C Mild hypothermia
Moderate hypothermia Core body temperature 86.0*F to 93.1*F, or 30.0*C to 33.9*C.
Core body temperature less than 86.0*F or less than 30.0*C Severe hypothermia
Passive rewarming The warming of a patient with minimal or no use of heat sources other than the patient's own heat production.
Adding heat directly to the surface of the patient's body. Active rewarming
Local cold injury Tissue damage to a specific area of the body that occurs when a body part, such as the nose, ears, cheeks, chin, hands, or feet is exposed to prolonged or intense cold.
A high core body temperature that results when the body gains or produces more heat than it loses Hyperthermia
Heat cramps Painful muscle spasms caused by an excessive loss of water and electrolytes in a warm environment,(mildest form of heat-related emergency.
A medical condition caused by excessive heat and dehydration; the most common heat-related illness Heat exhaustion
Heat stroke A medical condition in which the body's heat regulating mechanisms fail; the most severe form of heat-related emergency.
A process that results in harm to the respiratory system from submersion or immersion in a liquid. Drowning
Delayed drowning Occurs when a victim appears to have survived an immersion or submersion episode but later dies from respiratory failure or an infection.
The covering of the face and airway in water or other fluid. Immersion
Submersion The victim's entire body, including the airway, is under the water or other fluid.
A reflex triggered by cold water stimulation of the temperature receptors in the skin, resulting in slowing of the victum's heart rate in response to the increased volume of blood in the body's core. Mammalian diving reflex
The buildup of acid in the blood and tissue. Acidosis
Laryngospasm Contraction of the sensitive tissue near the vocal cords.
When the heart muscle fails to pump blood effectively to all parts of the body. Carciogenic shock
Barotrauma Diving-related injury caused by pressure that can occur on ascent or descent.
The presence of air bubbles in the circulatory system that may occur when divers ascend too rapidly or hold their breath during ascent. Air trapped in the lungs expands. Air embolism
Decompression sickness Diving-related injury that results from dissolved nitrogen in the blood and tissues
Created by: Jimmyc
Popular Paramedic/EMT sets




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