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Extracellular fluid Include interstitial, intravascular, or transcellular fluids
Osmosis A passive process whereby water (but not solutes) shifts across a selectively permeable membrane from an area of higher concentration to an area of lower concentration
Filtration A passive process where by water and solutes shift across cell membranes from Ana area of higher net pressure to an area of lower net pressure
What 2 different kinds of pressure affect movement of fluids Osmotic pressure and hydrostatic pressure
How does the renin-angiotensin system he’ll regulate fluid in the body By vasoconstriction and excretion or reabsorption of sodium and water
Antidiuretic hormone is released by what gland Pituitary gland (in response to increased plasma osmolality and severely decreased plasma volume; works on negative feedback loop)
Fluid volume deficit (FVD) Too little fluid in the intravascular and interstitial spaces of the body
2 types of fluid volume deficit Isotonic FVD - water and sodium lost in the same proportion as in normal body fluids Hypertonic FVD - proportionately more water than sodium is lost.
Severity of dehydration 2% loss is mild dehydration 5% loss is moderate “ 8% loss is severe “ 15% loss is life-threatening, usually fatal
Fluid volume excess
Sodium (Na+) 135-145
Potassium (K+) 3.5-5.0
Magnesium (Mg2+) 1.5-2.5
Calcium (Ca2+) 8.5-10.0
Chloride (CL-) 95-105
Phosphate 2.8-4.5
Created by: anay26643