Fluid Balance Flashcards
40% of body weight is…
Intracellular
20% of body weight is…
Extracellular
Two types of Extracellular fluid compartments
Interstitial, Intravascular
Interstitial means…
Between
Intravascular means…
Inside
Full-Term Baby is ______ fluid.
80%
Lean adult male is _____ fluid
60%
Aged client is ______ fluid.
40%
3 Parts of Passive Transport Systems
- Diffusion
- Filtration
- Osmosis
Active Transport System…
- Pumping
- Requires energy expenditure
3 Types of Membranes
Permeable, Semipermeable, Impermeable
Molecules move from high concentration to low concentration
Diffusion
Molecules move from low concentration to high concentration
Osmosis
Movement of solutes or solvent across membrane caused by hydrostatic pressure
Filtration
Filtration occurs at the _____ level.
Capillary
Filtration results in __________.
Third Spacing
Solutes can be moved against concentration gradient, also called “pumping”.
Active Transport System
Active Transport System requires the presence of _______.
ATP
3 Types of Fluids
Isotonic, Hypotonic, Hypertonic
No shift because solutions are equally concentrated
Isotonic
Lower solute concentration; cells swell.
Hypotonic
Higher solute concentration; cells shrink.
Hypertonic
Respond to fall in Arterial Blood Pressure; located in atrial walls, vena cava, aoritc arch and carotid sinus; results in retention of fluid due to kidney constriction.
Baroreceptor Reflex
Respond to fluid excess in atria and great vessels; creates strong renal response that increases urine output
Volume Receptors
