Friday, March 22, 2013

Capillary Exchange of Fluid and Solutes

Capillary Exchange of Fluid and Solutes

Diffusion - Fick's Law

  • gases -  rate of diffusion depends on solubility and size of gas molecule
  • other - rate depends on charge, pores, channels, etc.
Fluid balance in capillaries
  • Starling's Law (same Starling as heart guy)


In Kidney - this is the equation for Glomerular Filtration Rate (GFR)


Edema - cardiogenic (pressure) & non-cardiogenic (permeability or low oncotic P)

High Yield Figures  (from John Wood, PhD  KU Medical Ctr.) 
  • cardiogenic edema from high venous pressure NOT high arterial pressure)



  • Non- cardiogenic edema





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