BIOL 235 Lecture Notes - Lecture 5: Ion, Insulin, Oral Rehydration Therapy

• School: Athabasca University
• Department: Biology
• Course: BIOL 235
• Professor: john

Document Summary

Pathophysiology module 5 fluid & electrolyte imbalances. Mechanisms that cause fluid imbalance at the level of the capillary: Fluid imbalances at the capillary level can be due to several alterations in normal fluid movement. First, increased capillary hydrostatic pressure can cause higher amount of fluid to leave the capillary. If hydrostatic pressure continues to be high at the venous end of the capillary net fluid movement will be out of the capillary. Increased capillary hydrostatic pressure can result from hypertension. Or from an increase in fluid volume (for example, sodium and water retention) Hydrostatic pressure also increases if there is any back up of blood flow (for example, a dvt might obstruct venous blood flow, resulting in higher than normal pressure at the venous end of the capillary. Lack of this fluid affects the capillaries ability to pull fluid back into the intravascular space into the capillary at the venous end of the capillary.