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What is When capillary and interstitial hydrostatic pressures are 30 mm Hg and 10 mm Hg, respectively, and colloid oncotic pressure in capillaries and in interstitium are 22 mm Hg and 5 mm Hg, respectively, how much is the net filtration pressure? and explain in detail?
Forces oring filtration out of the capillaries ~ (1) Capillary hydrostatic pressure (30 mm Hg) (2) Interstitial fluid colloid oncotic pressure (5 mm Hg). Thus, total force that ors filtration = 30 + 5 = 35 mm Hg. Forces that pull the fluid back into the capillaries ~ (1) Plasma colloid oncotic pressure (22 mm Hg) (2) Interstitial fluid hydrostatic pressure (10 mm Hg). Thus, total force that opposes filtration = 22 + 10 = 32 mm Hg. Hence, net filtration pressure = 35 - 33 = + 3 mm Hg.