ch 3 obj 4
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Created by:
mjeglum on August 1, 2010
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Description:
Describe how the following events contribute to the development of edema:
decreased capillary oncotic pressure, increased capillary permeability increased capillary hydrostatic pressure, and lymph obstruction.
pg 95
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4 terms
Terms | Definitions |
|---|---|
 decreased capillary oncotic pressure | loss or diminished production of plasma albumin contributes to a a decrease in plasma oncotic pressure. decreased oncotic attraction of fluid within the capillary causes fluid to move into the interstitial space. decreased production of plasma protein may occur with liver disease or protein malnutrition. losses of plasma proteins occur with glomerular diseases of the kidney, serous drainage from open wounds, hemorrhage, burns, and cirrhosis of the liver. |
| increased capillary permeability | is usually associated with inflammation and the immune response. often a result of trauma, protein escapes from the plasma and produces edema through a loss of capillary oncotic pressure and gain in interstitial fluid proteins. |
| increased capillary hydrostatic pressure | results from venous obstruction or salt and water retention. hydrostatic pressure of fluid within the capillaries is increased enough to cause fluid to escape into the interstitial spaces. |
| lymph obstruction | lymphatic obstruction by inflammation or tumors can cause edema. |
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