yes, i think you are making this too hard.
tells you how concentrated
a solution is.
solution is less
concentrated than blood. (think of weak tea)
solution is more
concentrated than blood. (think of syrup)
solution is the same
concentration as blood. (think of ocean water)
is the diffusion
of water. diffusion
is a passive (doesn't require energy input) process by which a solution tends to "even out" concentrations accross a "semi-permiable membrane." (think cell membrane).
this is important because if you add a hypotonic
iv solution to blood (such as sterile water), the red blood cells tend to swell
because the extra water from the solution will diffuse into the rbcs in an attempt to even out the concentration, since the hypotonic solution will make the blood less
concentrated. (as an aside, those rbcs could swell to the point they rupture).
if you add a hypertonic
iv solution to blood (such as 10% dextrose), the rbcs tend to shrivel up
, because water will leave the rbcs in an attempt to even out the concentration, since the hypertonic solution will make the blood more
how much these things happen will depend greatly on how hypertonic or hypotonic the solution is.
does this help?