In a capillary, Pc is 30 mm Hg, Pi is −2 mm Hg, πc is 25 mm Hg, and πi is 2 mmHg. What is the direction of fluid movement and the net driving force?
ExplanationThe net driving force can be calculated with the Starling equation
Net pressure: (Pc - Pi) - (πc - πi)
: [(30-(-2))-(25-2)]mmHg
: 32mmHg - 23mmHg
: 9mmHg
Because the net pressure is positive, filtration out of the capillary will occur