What is an isotonic solution? - ANSWER same tonicity as blood, it does not cause a shift
in fluids. Often used as bloodstream volume expander.
What is a hypotonic solution? - ANSWER This has fewer particles and more water than
blood and body fluids. Causing a shift from ECF to ICF to deliver water to the body as a
dehydration treatment.
What is a hypertonic solution? - ANSWER A solution containing more particles and less
water than blood and body fluids. Fluids shift from ICF to ECF causing the body cell to
shrink.
What is a major ion in ECF? - ANS Sodium
It's a major determinant of ECF osmolarity and helps in the maintenance of fluid balance
and osmotic pressure.
What is a major ion in the ICF? - ANS Potassium
It helps in the maintenance of neuromuscular excitability and acid base balance.
What is the normal sodium range? - ANS 135-145 mEq/L
,What are the causes of Hyponatremia? - ANS A: adrenal insufficiency
What are S/S of hypernatremia? - ANSWER F: fever (low grade), flushed skin
R:restless (irritable)
I: increase fluid restriction and elevated BP
E: Edema (peripheral and pitting)
D: decrease urinary output, dry mouth
E: muscle twitching and irregular muscle contractions
L: skeletal muscles weakness, decrease or absent DTR
*extreme thirst
What are nursing interventions for hypernatremia? - ANSWER M: monitor sodium intake
and labs
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