Physiologic Influences On Fluid And Electolyte Balance

Front 1

Solvent

Back 1

water of fluid portion

Front 2

solute

Back 2

particles that are dissolved or suspended in water

Front 3

filtration

Back 3

fluid movement through a cell or blood vessel because of hydrostatic pressure differences

Front 4

hydrostatic pressure

Back 4

the force of the weight of water pressing against the confining walls of a space
(water-pushing pressure)

Front 5

edema

Back 5

-increased hydrostatic pressure
-decreased oncotic pressure

Front 6

edema

Back 6

-increased hydrostatic pressure
-decreased oncotic pressure
-increased Na intake
-right-sided heart failure
-dependent edema (gravity)

Front 7

right-sided heart failure

Back 7

-right ventricle too weak to pump blood to pulmonary vessels
-blood volume in the right side of heart increases
-blood backs up into the venous system
-hydrostatic pressure increases
-edema

Front 8

brownian motion

Back 8

-vibration of molecules caused by electrons orbiting at the core of each molecule
-causes random movement
-molecules collide or bump into each other
-speed increased with each collision

Front 9

facilitated diffusion

Back 9

-needs help to cross through a membrane
-EX: glucose cannot pass through the IV space to the IC space without insulin

Front 10

diffusion

Back 10

-movement of solute particles through a membrane
-occurs faster when concentration gradient is steeper

Front 11

osmosis

Back 11

-movement of water through a permeable membrane
-occurs when there is a membrane that separates 2 fluid compartments, atleast one of which contains a solute that cannot pass through the membrane

Front 12

which would occur first, diffusion or osmosis?

Back 12

diffusion

Front 13

osmolarity/osmolality

Back 13

total amount of solute particles, including electrolytes, present in a solution

Front 14

blood and other body fluids' normal osmo level

Back 14

-270-300 mOsm/L
-tight range
-body functions are best when body fluids are closer to 300

Front 15

what IV solutions are isotonic

Back 15

-lactated ringers
-0.9% NaCl

Front 16

solubility

Back 16

-the degree to which a solute dissolves in water
-greater the solubility the higher the osmotic pressure

Front 17

what is the energy that is used for the Na/K pump?

Back 17

-ATP
-energy comes from breaking of the high-energy bond which occurs when a phosphate group is split off from an adenosine triphosphate molecule