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Flashcards in body fluid compartments Deck (22):
1

how much urine does a person excrete a day

1400ml

2

what makes up the ECF

interstitial fluid and blood plasma

3

what body fluid compartment has the largest volume

intracellular

4

transcellular fluid makes up about ___ liters

1-2

5

which cation/anion in ECF

Na and Cl. ca hCO3

6

which cation/anion in ICF

k Mg, PO4 and organic anions, proteins

7

____ follows ____

water follows salt

8

total body water is ___ of body weight

60

9

osmosis is diffusion from ___ to ___

high to low

10

isotonic added to ECF

no change in osmolarity, increase ECF volume

11

hypotonic added to ECF

ECF osmo decreases. water moves into cells. icf (more) and ecf volume both up.

12

hypertonic added to ECF

ECF osmo increases. water moves from cells to ECF. increase in ECF volume, decrease in ICF volume, rise osmo both.

13

primary loss of water from ECF results in

hyponatremia and dehydration, associated with decreased ECF

14

hyponatremia = ____na and ___h20

dec Na, excess H20

15

hyponatremia conditions

diarrhea, vomiting, diuretic abuse, addisons (dec aldosterone), excess water retention (ADH)

16

addisons =

decreased aldosterone

17

hyponatremia = ___ ADH and ___ aldosterone

increased ADH and decreased aldosterone

18

hypernatremia = ___ ADH and ___ aldosterone

decreased ADH and increased aldosterone

19

hypernatremia conditions

lack of ADH, DI, dehydration, aldosterone secretion

20

nephrogenic DI

kidneys cant respond to ADH

21

central DI

lack of ADH - kidneys excrete large amt of dilute urine causing dehydration and excess NaCl in ECF

22

hypernatremia promotes

ADH, which makes you hang on to more water!