Ch. 41

isotonic contraction
- volume contraction in which sodium and water isotonic proportions.
- although there is a decrease in the total volume of extracellular fluid, there is no change in osmolality.
- Causes:
- -vomiting
- -diarrhea
- -kidney disease
- -misuse of diuretics
- Treatment:
- -Lost volume should be replaced with fluids that are isotonic to plasma.
- - 0.9% sodium chloride
Hypertonic Concentration
loss of water is greater than the loss of sodium
- Causes:
- -excessive sweating
- -osmotic diuresis
- -feeding excessively concentrated food to infants
- -can be secondary to extensive burns or disorders of CNS
Hypotonic Concentration
-loss of sodium exceeds loss of water
- Causes:
- -excessive loss of sodium thru kidneys
- Treatment:
- -infusing isotonic sodium chloride solution

Author

Anonymous

ID

73647

Card Set

Ch. 41

Description

fluid balance & ion concentration

Updated

2011-03-18T06:23:15Z

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