FEAB Flashcards
tonicity> ICF, osmotic pressure unequal inside & out of cells
- dehydration or _______ fluid draws water out of cells into more highly concentrated ECF
- I.E., D5 0.45% NaCl, D5 NaCl
hypertonic
tonicity = ICF, osmotic pressure is same inside & out of cells (do not shrink or swell)
- I.E., LR, NS (0.9%)
isotonic
tonicity < ICF, osmotic pressure draws water in cells leading to severe electrolyte loss & inappropriate use of IV can lead to __________.
- I.E., 0.45% NaCl
hypotonic
fluid volume deficit
hypovolemia
fluid volume excess
hypervolemia
hypotonic in Pt (2)
Dextrose & 0.45% NaCl NS
isotonic in Pt (2)
LR & 0.9% NaCl NS
hypertonic in Pt (2)
3% NaCl NS & Dextrose in 1/2 NS
isotonic, hypertonic, & hypotonic =
crystalloids
substances that increase the colloid osmotic pressure =
- contains proteins
- NO oxygen carrying capability
colloids
stabilizes BP, regulates heart contractions, and regulates muscle functions
potassium
responsible for muscle contraction, proper heart rhythm, nerve function, bone-building & strengthening, decreases anxiety, digestion, stabilizes protein-fluid balance
magnesium
responsible for fluids balance, muscle contraction, nerve signaling
sodium
responsible for muscle contraction, nerve signaling, blood clotting, cell division, forming & maintaining bones and teeth
calcium
fluid balance
chloride