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electrolytes

colligative properties and electrolytic functions

QuestionAnswer
electrolytes Compounds that dissociate into ions in water
nonelectrolytes are chemical compounds that remain bound together when dissolved in a solution and do not conduct electricity
strong electrolyte a solution in which a large portion of the solute exists as ions
weak electrolyte a solution that conducts electricity poorly because only a fraction of the solute exists as ions
electrolyte balance Essential for fluid balance, blood pressure, nerve conduction, and muscle contraction.
foods highest in mineral rich electrolytes
bananas rich source of potassium
kidneys regulate the electrolyte balance by filtering out excess ions
hyponatremia Abnormal condition of low sodium in the blood
symptoms of hyponatremia ...headache, muscle weakness, fatigue, apathy, confusion, abd. cramps, & orthostatic hypotension.
danger of heavy exercise excess loss of electrolytes in your sweat, particularly sodium and potassium.
fluid intake is critical to maintaining electrolyte balance
drop in blood sodium levels stimulates the kidneys to produce more urine...restoring the sodium levels by lowering the amount of water in the blood
results of high sodium levels in the blood (1) the body develops a thirst, and (2) the brain stimulates the kidneys to produce less urine...both actions result in the dilution of the sodium in the blood; restoring the balance
Hypernatremia An ELEVATION of SODIUM in the blood either from dehydration, or increased sodium intake or retention.
Hypokalemia A condition in which an inadequate amount of potassium
Hyperkalemia An abnormally high concentration of potassium ions in the blood
osmotic pressure Pressure that must be applied to prevent osmotic movement across a selectively permeable membrane
fluid balance fluids and electrolytes leaving the body should be equal to the amounts being taken in
Hydrostatic pressure regulate the movement of water and electrolytes from one compartment to another.
water balance exists when water intake equals water output
daily water intake About 60% of daily water is gained from drinking, another 30% comes from moist foods, and 10% from the water of metabolism.
thirst mechanism is the primary regulator of water intake.
water output urine, feces, perspiration, evaporation and through breathing
electrolytes of greatest importance sodium, potassium, calcium, magnesium, chloride, sulfate, phosphate, bicarbonate, and hydrogen ions.
body water content of infants about 73%,
body water content of men 60%
body water content of women about 50% because they have relatively more body fat and less skeletal muscle than men
Created by: Rufus Richmond Webster Rufus Richmond Webster on 2014-01-23



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