click below
click below
Normal Size Small Size show me how
Fluid & Electrolyte
Nursing-fluids and electrolytes test 2
Question | Answer |
---|---|
Osmolality | measure of solute concentration, defined as the number of osmoles of solute per 1 L of solution. |
Sources of Water | Oral, foods, from oxidation, parenteral fluids, enteral feedings |
"Normal" water loss | skin, lungs, GI tract, kidneys, insensible loss |
water loss from lungs | 300-400ml/day |
water loss from GI tract | 100-200 ml/day |
water loss from insensible loss | 600ml/day (evaporation) |
Isotonic contraction (Def) | Na and water lost in isotonic proportions |
Isotonic contraction causes | blood loss, vomiting, diarrhea, kidney disease, diuretics |
Isotonic Contraction treatment | Isotonic solutions (0.9 NS, lactated ringers) 0.9 NS only fluids used in blood transfusion process |
Hypertonic Contraction (def) | loss of water exceeds loss of sodium |
Hypertonic contraction causes | excessive sweating, osmotic diuresis, concentrated feedings in infants, burns, CNS disorders |
hypertonic contraction treatment | hypotonic fluids (1/4 NS, free water, D5W) |
Hypotonic Contraction (def) | loss of sodium exceeds loss of water |
Hypotonic contraction causes | excessive sodium loss through kidneys-diuretic therapy, chronic renal insufficiency, lack of aldosterone |
Hypotonic contraction treatment | 0.9% NS if mild, Hypertonic solutions (3% NS) if severe |
fluid volume deficit- monitor: | I & O, DAILY WEIGHTS (2.2lbs=1000ml fluid), skin turgor, increased UOP w/ normal specific gravity, VS, clear sensorium, labs |