<prompt> When capillary and interstitial hydrostatic pressures are 30 mm of Hg and 5 mm of Hg and colloid oncotic pressure of capillaries and interstitum if 25 mm of Hg and 5 mm of Hg, what is the Net filtration pressure?5 mm Hg10 mm Hg15 mm Hg20 mm Hg  <response>: Forces that our filtration - capillary hydrostatic pressure plasma colloid oncotic pressure. Forces that opposes filtration - interstitial hydrostatic pressures capillary oncotic pressure. Net filtration pressure -sum of hydrostatic colloid osmotic forces that either our or oppose filtration across capillaries. These forces are known as Starling forces NFP PC pif - Pif - pP Pc - Capillary hydrostatic pressure PP - Capillary oncotic pressure Pif - Interstitial hydrostatic pressure Pif - Plasma oncotic pressure Here, net filtration pressure: 30 5 - 25 5 5 mmHg 