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25 Cards in this Set

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The presence of air in the veins, which can lead to cardiac arrest if it enters the heart
air embolism
The temperature of the surrounding environment
ambient temperature
Common name for decompression sickness.
bends
A heart rate of less than 60 beats/min in children or less than 80 beats/min in infants.
bradycardia
Loss of consciousness caused by a decreased breathing stimulus.
breath-holding syncope
The loss of heat by direct contact (eg, when a body part comes into contact with a colder object).
conduction
The loss of body heat caused by air movement (eg, breeze blowing across the body).
convection
The temperature of the central part of the body (eg, the heart, lungs, and vital organs).
core temperature
A painful condition seen in divers who ascend too quickly, in which gas, especially nitrogen, forms bubbles in blood vessels and other tissues; also called "the bends."
decompression sickness
Slowing of the heart rate caused by submersion in cold water.
diving reflex
Death from suffocation by submersion in water.
drowning
Certain salts and other chemicals that are dissolved in body fluids and cells.
electrolytes
Conversion of water or another fluid from a liquid to a gas
evaporation
Damage to tissues as the result of exposure to cold; frozen or partially frozen body parts.
frostbite
Painful muscle spasms usually associated with vigorous activity in a hot environment.
heat cramps
A form of heat injury in which the body loses significant amounts of fluid and electrolytes because of heavy sweating; also called heat prostration or heat collapse.
heat exhaustion
A life-threatening condition of severe hyperthermia caused by exposure to excessive natural or artificial heat, marked by warm, dry skin; severely altered mental status; and often irreversible coma
heatstroke
A chamber, usually a small room, pressurized to more than atmospheric pressure.
hyperbaric chamber
A condition in which core temperature rises to 101°F (38.3°C) or more.
hyperthermia
A condition in which the internal body temperature falls below 95°F (35°C), usually as a result of prolonged exposure to cool or freezing temperatures.
hypothermia
A severe constriction of the larynx and vocal cords.
laryngospasm
Survival, at least temporarily, after suffocation in water.
near drowning
A continuation of an area of pain or discomfort distal to the site of the origin of the pain; gives the sensation that the pain is moving (radiating) away from the origin.
radiation
The loss of body heat as warm air in the lungs is exhaled into the atmosphere and cooler air is inhaled.
respiration
A system that delivers air to the mouth and lungs at various atmospheric pressures, increasing with the depth of the dive; stands for self-contained underwater breathing apparatus.
scuba