body fluid compartments Flashcards
how much urine does a person excrete a day
1400ml
what makes up the ECF
interstitial fluid and blood plasma
what body fluid compartment has the largest volume
intracellular
transcellular fluid makes up about ___ liters
1-2
which cation/anion in ECF
Na and Cl. ca hCO3
which cation/anion in ICF
k Mg, PO4 and organic anions, proteins
____ follows ____
water follows salt
total body water is ___ of body weight
60
osmosis is diffusion from ___ to ___
high to low
isotonic added to ECF
no change in osmolarity, increase ECF volume
hypotonic added to ECF
ECF osmo decreases. water moves into cells. icf (more) and ecf volume both up.
hypertonic added to ECF
ECF osmo increases. water moves from cells to ECF. increase in ECF volume, decrease in ICF volume, rise osmo both.
primary loss of water from ECF results in
hyponatremia and dehydration, associated with decreased ECF
hyponatremia = ____na and ___h20
dec Na, excess H20
hyponatremia conditions
diarrhea, vomiting, diuretic abuse, addisons (dec aldosterone), excess water retention (ADH)
