General weakness, lethargy, and cognitive changes following rapid ascent to a high altitude.
Acute Mountain Sickness (AMS)
Transfer of heat (including the air) in direct contact with the body.
Transfer of air through the movement of air currents
Respiratory impairment from submersion or immersion in a liquid medium
Loss of heat when moisture vaporizes on the body's surface
Injury to the skin caused by prolonged exposure to the cold; Liquid content of the skin cells feezes; may be superficial or deep
Completely reversible superficial cold injury caused by intense vasoconstriction that affects only the topmost portions of the skin
Cerebral edema followinga rapid ascent to a high altitude
High-Altitude cerebral edema (HACE)
Pulmonary edema following a rapid ascent to a high altitude
High-altitude pulmonary edema (HAPE)
Abnormal and dangerous condition in which the body temperature falls below 95 degrees F (35 degrees C) and the body's normal body functions are impaired; usually caused by prolonged exposure to cold
Transfer of heat by infrared heat rays. Heat rays are radiated by the body and other objects in the environment. If the temperature of the body is greater than the temperature of the surroundings, heat is lost from the body
Any submersion into water that requires field care and transport to a hospital for treatment or observation
The metabolic activity necessary to maintain cellular functions at rest
The involuntary contraction of small groups of muscles, which can generate great amounts of heat
A red rash with small bumps, usually found at the neck, under arms, and in the groin, caused by blocked sweat glands
Muscular cramps that occur during strenuous exertion and from excessive loss of body fluid through persperation
Inability of the cardiovascular system to keep up with stresses imposed by a hot environment. Rarely causes death
A transient loss of consciousness resulting from the blood vessels dilating to compensate fir excessive heat
A complete failure of the thermoregulatory system that results in extreme increases in core body temperature and damage to cells as well as changes to mentation. Associated with a high mortality rate
Inhibits heat loss because of the increased insulating effect of the excess subcontaneous fat
Constant muscle tremors, and increased heat production, is another condition that predisposes an individual to heat illness
Fall in blood pressure when the supine patient stands
The most severe reaction to bug bites/stings
Unpleasant tingling feelings both at the site of envenomation and at distant sites
This snake's bite causes local necrosis; in severe cases, systemic effects occur and death may result. Dent between eyes and nostril, and plates on tail. Other symptoms of this snake bite are: Swelling, pain, redness of site
This snake's bite causes no local necrosis. The nervous system is affected when the poison is obsorbed. The onset of effects may be delayed for up to 12 hours. Systemic effects can lead to respiratory paralysis and death. Skin colors are, red-yellow-red. Early signs of bite are mild, usually only minimal redness, and swelling.
Generalized term used to describe the physiologic changes seen when a person is exposed to pressure changes.