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14 Cards in this Set

  • Front
  • Back
Water content of adult
60% of body weight
Water content of older adults
45% of body weight
Water content of infants
70% of body weight
Role of electrolytes
-regulation of water distribution
-transmissions of nerve impulses
-contraction of muscles
-generation of ATP
-regulation of acid/base balance
-blood clotting
What is the primary IC cation
What is the primary EC cation
What is the primary IC anion
What is the primary EC anion
What is the normal osmilarity of body fluids
275-295 mOsm/Kg
tight range
What are the major determinants of serum osmilality
Change in plasma osmo
-ADH levels change
-Renal conservation or excretion of water
What is the normal osmolality of urine
-100-1300 mOsm/Kg
-large range
-provides the ability to excrete or conserve large amounts of electrolytes
Colloidal oncotic pressure
-related to protein (mainly albumin, but also BUN and glucose)
-pulls fluid into the IV space
-positively charged albumin is repelled from the negatively charged capillary walls
Hydrostatic pressure
-blood pressure
-weight of blood fluids in the arteries
-pushes fluid into the IC space