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AMSN-Fluid Movement

Fluid/Electrolyte/Acid-Base Imbalances

Term/QuestionAnswer
Diffusion Movement of PARTICULATES across semi-permiable membrane; particulates move from higher concentration of water to lower concentration of water
Osmosis Movement of WATER across semi-permiable membrane; Water moves from lower concentration of particules to higher concentration of particulates
Osmotic Pressure Pressure created by differences in numbers of particles on two sides of a membrane; 2 types: Oncolic pressure & Crystalloid pressure
Oncotic pressure Produced by particles that CANNOT pass through a membrane; Attracts water to equalize pressure; Protein is a major force
Crystalloid pressure Produced by small particles that CAN pass through a membrane; Na+ is a major factor
Active transport Movement of particles against osmotic pressure gradient; Particles move from fluids lower in concentration to fluids higher in concentration; Pressure necessary to push particles
Hydrostatic pressure Pressure from fluid against walls of its container; Water pushed through semi-permiable walls if pressure is great enough
Hypovolemia-Definition Deficit in extracellular fluid; loss in intravascular volume;may be seen in both intravascular & interstitial spaces; loss of extracellular ions also common; may occur abruptly or slowly
Created by: Karla
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