Electrolytes: Fluids Flashcards
Who are most vulnerable to water changes?
:Very young
:Very old- lose muscle, less body mass, decrease thirst, decrease kidney function
3 Main body fluid compartments
Intracellular
Extracellular
Transcellular
Intracellular
:contain within the cell
:2/3 of all body water
Extracellular
:Interstitial- Between the cell
:Intravascular- Blood vessels
Transcellular
Compartments that don’t move around the body
ex. Fluids in pericardium sac
cerebral spinal fluid
“Corridor Effect”
it needs to pass the interstitial space to get to one to another
Hydrostatic Pressure
:force exerted on vessel walls by fluids flowing through them.
:tends to force fluids and electrolytes out of capillaries into the interstitial space
:created by the pumping of the heart
Plasma Protiens
Albumin Glucose Urea "Big Dogs" Bigger molecules that pulls back water in capallaries
Active transport
:Energy spent
:moves large molecules across a pressure gradient from an area of decrease concentration.
Two types of Active Transports
Sodium Pump: Intercellular
Potassium Pump: Intervascular
Avg. Fluid input/output
2500ml
Insensible Losses
Fluid output we cannot measure: feces, sweat, lungs, skin
Sensible Losses
Kidney (urine)
GI System
Hypothalmus
:Thirst Center
:Produces ADH
:Regulator of H2O intake
Posterior Pituitary
:Stores and Secretes ADH
