Starling forces are measured across a capillary wall, and the following values are obtained:
Capillary hydrostatic pressure 30 mm Hg
Capillary oncotic pressure 25 mm Hg
Interstitial hydrostatic pressure 0 mm Hg
Interstitial oncotic pressure 15 mm Hg
If the reflection coefficient for protein across this capillary wall is 0.5, what is the pressure and direction of fluid flow across the capillary wall?
Net pressure Direction of fluid flow
A. 5 mm Hg Into capillary
B. 10 mm Hg Out of capillary
C. 15 mm Hg Out of capillary
D. 20 mm Hg Out of capillary
E. 25 mm Hg Out of capillary
ANS: D
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