An inorganic compound. It is a transparent, tasteless, odorless, and nearly colorless chemical substance, and it is the main constituent of Earth's hydrosphere and the fluids of all known living organisms.
What is water?
Essential minerals—like sodium, calcium, and potassium—that are vital to many key functions in the body and give off an electrical charge when they dissolve in fluids like blood and urine.
What are electrolytes?
The process of causing something to absorb water or combining a substance chemically with water molecules.
What is hydration?
The leading weather-related killer, ending more lives than hurricanes, floods, tornadoes and lighting combined.
What is heat?
The body's physiological response to heat, exercise or stress.
What is sweating or perspiration?
Comprises approximately 60% of body weight.
What is the percentage of water in the human body?
The mildest form of heat injury. Consists of painful muscle spasms that occur during or after intense exercise and sweating in high heat.
What are heat cramps?
Heat related environmental condition in which age, physical fitness, medical conditions, acclimatization are all factors.
What is heat stress?
A skin irritation caused by excessive sweating during hot, humid weather. Symptoms include:
What is heat rash?
Medical term for: The skin's elasticity. It is the ability of skin to change shape and return to normal.
What is skin turgor?
Any substance (drug) that promotes increased production of urine.
What is a diuretic?
Occurs when the body's temperature rises rapidly 104F or higher, sweating mechanism fails, and body is unable to cool down. Can cause permanent disability or death if the person does not receive emergency treatment.
What is heat stroke?
May occur when you lose more water or fluid than your body can take in. It can also occur when you take in more water or fluid than your body is able to get rid of.
What is a fluid imbalance?
Daily bodily process that include urine excretion, skin evaporation, respiration, and feces excretion.
What are major routes of water loss?
A liquid made from 99% water and 1% salt and fat.
What is sweat?
A measurement in which a normal person urinates anywhere between 800 and 2,000 ml per day.
What is normal urine output?
The body's response to an excessive loss of water and salt, usually through excessive sweating. Most likely to affect the elderly, people with high blood pressure and those working in a hot environment.
What is heat exhaustion?
Constriction of blood vessels, which forces fluid into spaces between cells leading to retention, especially in lower limbs. The kidneys begin to react by retaining sodium and water and fluid builds up in surrounding tissues, leading to swelling. Common symptom of CHF.
What is edema?
Medical term for: An excess of fluid in the body. Colloquially it is often referred to as fluid overload. Common in the elderly and those with renal or cardiac failure. It can be caused by excessive fluid intake or inappropriate fluid retention (e.g. heart failure, renal failure).
What is hypervolemia?
Medical term for: An overall deficit of fluid in the body. Causes include poor fluid intake, excessive fluid loss (e.g. vomiting, diarrhea, hemorrhage, excessive diuretic therapy) and third space loss of fluid (where fluid remains within the body but has shifted from the intravascular space to another compartment within the body).
What is hypovolemia?
A medical condition associated with heat stress and prolonged physical exertion. Causes the rapid breakdown, rupture, and death of muscle. When muscle tissue dies, electrolytes and large proteins are released into the bloodstream. This can cause irregular heart rhythms, seizures, and damage to the kidneys.
What is rhabdomyolysis?
Temperature and humidity are components of this term. Typically heard on a weather forecast.
What is the heat index?
Fainting episode or dizziness that usually occurs when standing for too long or suddenly standing up after sitting or lying occurring from dehydation and lack of acclimatization.
What is heat syncope?
Symptoms include:
What is heat stroke?
Symptoms include:
What is heat exhaustion?