Pressures affecting fluid movement between spaces.
1) Fluid movement across the cell wall (from intra to extracellular) is only affected by osmotic pressure.
2) This is unlike fluid movement between blood vessel and interstitial space which is also affected by other forces eg. hydrostatic pressure and oncotic pressure.
A patient is given a litre of NaCl 0.9% through a cannula.
How will this fluid redistribute itself within the interstitial/plasma/intracellular compartments?
Extracellular to interstitial; and interstitial to intracellular.
Extracellular and intracellular to interstitial.
Equidirectional across all compartments.
A patient is given a litre of Dextrose 5% through a cannula.
E xtracellular and intracellular to interstitial.
Fluid distribution across various body water compartmentsāµ