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27 Cards in this Set
- Front
- Back
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All of the surrounding external factors that affect the development and functioning of a living organism?
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Environment
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A medical condition caused or exacerbated by the weather, terrain, atmospheric pressure, or other local factors.
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Environmental emergency
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The natural tendency of the body to maintain a steady and normal internal environment.
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Homestasis
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The difference in temperature between the environment and the body.
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Thermal gradient
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The production of heat, especially within the body is what?
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Thermogenesis
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Moving electrons, ions, heat, or sound waves through a conductor or conducting medium?
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Conduction
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Transfer of energy through space or matter?
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Radiation
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Change from liquid to a gaseous state
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Evaporation
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The exchange of gases between a living organism and its environment
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Respiration
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The maintenance or regulation of a particular temperature of the body
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Thermoregulation
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The body temperature of the deep tissues, which usually does not vary more than a degree or so from its normal 37c or 98.6f
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Core temperature
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Portion of the diencephalon producing neurosecretions important in the control of certain metabolic activities, including body temperature regulation.
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Hypothalmus
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Homestatic mechanism in which a change in a variable (ie core temperature) ultimately inhibits the process that led to the shift
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Negative feedback
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Two mechanisms of heat dissipation
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Sweating and Vasodilation
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Two mechanisms of heat conservation
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Shivering and Vasoconstriction
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BMR is known as?
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Basal metabolic rate
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Rate at which the body consumes energy just to maintain stability; the basic metabolic rate(measured by the rate of oxygen consumption) of an awake, relaxed person 12 to 14 hours after eating and at a comfortable temperature
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BMR or Basal Metabolic Rate
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Rate at which the body consumes energy during activity. It is faster than the basal metabolic rate.
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Exertional metabolic rate
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Increased core body temperature due to inadequate thermolysis.
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Heat illness
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Condition that damages the autonomic nervous system, which usually senses changes in core temperature and controls vasodilation and perspiration to dissipate heat
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Autonomic neuropathy
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Prediposing factors to hyperthermia are?
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Age of pt
Health of pt Medications Level of acclimatization Length of exposure Intensity of exposure Environmental factors such as humidity and wind |
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Steps to preventing hyperthermia.
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1. Maintain adequate fluid intake
2.Allow time for gradual acclimatization to being out in heat 3. Limit exposure to hot environments |
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Acute painful spasms of the voluntary muscles following strenuous activity in a hot environment without adequate fluid or salt intake
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Heat cramps
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Sweating occurs when what is transported to the surface of the skin?
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Salt
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Treatment for heat cramps
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1. Remove pt from environment
2. Administer an oral solution gallon of water with approx 4 teaspoons of salt, or a sports drink. Do not administer salt tablets |
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The reversible changes in body structure and function by which the body becomes adjusted to a change in environment
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Acclimatization
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Signs of hyperthermia include
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Diaphoresis(sweating)
Increased skin temperature Flushing As heat illness progresses you will see altered mentation and altered level of consciousness |
