<prompt> What is the reason for increased interstitial fluid?Increase hydrostatic pressure, increase oncotic pressureDecrease hydrostatic pressure, decrease oncotic pressureIncrease hydrostatic pressure, decrease oncotic pressureDecrease hydrostatic pressure, increase oncotic pressure  <response>: Ans. C Increase hydrostatic pressure, decrease oncotic pressure Starlings hypothesis states that the fluid movement due to filtration across the wall of a capillary is dependent on the balance between the hydrostatic pressure gradient and the oncotic pressure gradient across the capillary.The four Starlings forces are:1. Hydrostatic pressure in the capillary Pc2. Hydrostatic pressure in the interstitium Pi3. Oncotic pressure in the capillary pc4. Oncotic pressure in the interstitium piThe balance of these forces allows calculation of the net driving pressure for filtration.Net Driving Pressure 