The hydrostatic pressure in a capillary is 32 mm Hg and the

The hydrostatic pressure in a capillary is 32 mm Hg, and the plasma colloid osmotic pressure is 25 mmHg. What is the net filtration pressure, in mmHg? Enter your answer as a number. Do not enter words or symbols

Solution

Answer

NFP = 32 - 25 = 7 mmHg

Net Filtration Pressure (NFP) = Net Hydrostatic Pressure - Net Colloid Osmotic Pressure
Net Hydrostatic Pressure = Cappilary Hydrostatic Pressure (CHP) - Interstitial fluid hydrostatic Pressure (IHP)
Interstitial fluid hydrostatic Pressure (IHP) = 0 - 5 mmHg
Net Colloid Osmotic Pressure = Blood Colloid Osmotic Pressure (BCOP) - Interstitial fluid Colloid Pressure (ICOP)
Interstitial fluid Colloid Pressure (ICOP) = 0 - 5 mmHg
Here we set IHP and ICOP equivalen to Zero (0)
Therefore, Net Filtration Pressure (NFP) = Cappilary Hydrostatic Pressure (CHP) - Blood Colloid Osmotic Pressure (BCOP)
Putting the values 32 - 25 = 7 mmHg