NUR 347 Quiz 2 - Answer About 70% of body water 2. Extracellular...

NUR 347 Quiz 2

• Intracellular (ICF)

Answer

About 70% of body water

• Extracellular (ECF)

Answer

• 30% of body water

• Includes intravascular (plasma) & interstitial (third space)

• Fluid balance =

Answer

Shifting

• Shifting preformed by body organs and body systems

• Four processes for shifting of body fluids

Answer

• Osmosis

• Diffusion
• Active Transport
• Capillary filtration 1 / 3

• Osmosis

Answer

passage of solvent through a SEMIPERMEABLE membrane from an area of LOWER concentration to an area of HIGHER concentration

• Diffusion

Answer

tendency of solute to move freely throughout a solvent from an area of HIGHER concentration to an area of LOWER concentration

• Active transport

Answer

• Process that requires energy for the movement of substances through a cell membrane, against

the concentration gradient, from an area of LESSER solute concentration to an area of HIGHER solute concentration

• Adenosine triphosphate (ATP), which is stored in all cells, supplies energy for solute movement

in and out of the cell.

• Capillary Filtration

Answer

-Filtration is the passage of fluid through a PERMEABLE membrane

-Fluids move from an area of high pressure to one of lower pressure.

• Capillary filtration results from the force of blood "pushing" against the walls of the

capillaries.-At the arterial end of the capillaries, filtration is dependent primarily on arterial blood pressure

• At the venular side of the capillaries, filtration is dependent on venous blood pressure
• The "pushing" force is referred to as hydrostatic pressure 2 / 3

• Semi-permeable

Answer

allows fluids and some particles to pass (s=s)

• Permeable

Answer

allows fluids and all particles to pass (p=p)

• Hypovolemia

Answer

• Fluid volume deficit (FVD) is caused by a loss of both water and solutes in the same proportion

from the ECF space

• Dec. ECF, Dec. circulating blood volume

• Cause of Hypovolemia

Answer

-Dec. intake (oral trauma, NPO, impaired thirst)

• Inc. output (v/d, kidney disease, gastric suction)

-Interstitial space/third spacing

• Hypervolemia

Answer

• Fluid volume excess
• / 3