Flashcards in Enviromental Emerency Deck (59)
Maintaining constant suitable conditions within body
Difference in temperature between environment ( ambient temperature) and body
Controlled by endocrine system
Loss of heat
Body heat lost by evaporation of perspiration
Body heat lost to air
Body heat lost to nearby objects
Body heat lost to nearby objects without touching them
Unclothed person will lose ____ of body heat by radiation at room temperature
Maintenance or regulation of temperature
Base of brain; responsible for temperature regulation; functions as thermostat
Skin and mucous membranes
Blood carries heat to periphery for dissipation through skin
Signs of Thermolysis
Increased skin temp
Predisposing factors of hyperthermia
Age of patient : pedi and geri populations tolerate less variation in temperature
Health of patient : diabetics can become hyperthermia more easily (poor circulation)
Predisposing factors medications for hyperthermia
Diuretics- predispose to dehydration
Beta - blockers : interfere with vasodilation
Psychotropics and antihistamine : interfere with central Thermoregulation.
Muscle cramps; over exertion and dehydration in prescence of atmospheric.
Sweating : loss of water; loss of electrolytes
Intermittent cramping of skeletal muscles may occur
Signs and symptoms of heat cramps
Painful ; not actual heat illness
Fingers, arms , legs, abdominal muscles
Mentally alert, weakness, dizzy , and faint
Vitals signs stable
Temp normal, slightly elevated
Skin warm and moist
Mild heat illness; acute reaction to heat exposure
Loss of water and sodium with vasodilation
Decreased circulating blood volume, venous pooling, reduced cardiac output.
Signs and symptoms of heat exhaustion
Dehydration and electrolyte loss account for signs and symptoms
If not treated , may progress to heatstroke
Increased body temp, skin cool and clammy with heavy perspirations, breathing and shallow, weak pulse.
Diarrhea, muscle cramps, weak, maybe LOC
If CNS symptoms, treat for heatstroke
Hypothalamic temperature regulation lost; uncompensated hyperthermia.
Cell death; damage to brain; liver , kidneys
Heatstroke occurs at a temperature of at least ?
Good health; increased core body temp caused by overwhelming heat stress.
Heatstroke from exertion can lead to
Dehydration in heat disorders
Inhibit vasodilation and Thermolysis
Low core body temp below 95 degrees
And 35 C
Core temp greater then 90 degrees (32C) with signs and symptoms of hypothermia