Ch. 17 - Fluid, Electrolyte, and Acid-Base Imbalances Flashcards
T or F: A patient with consistent dietary intake who loses 1 kg of weight in 1 day has lost 500 mL of fluid.
F 1000 mL
T or F: A man who weight 90 kg has a total body water content of approximately 60L.
F: 90 x 60% = 54L
T or F: Major tissue damage that causes release of intracellular electrolytes into extracellular fluid will cause hypernatremia.
F: hyperkalemia
T or F: The primary difference in the electrolyte composition of intravascular fluid and interstitial fluid is the higher content of protein in plasma.
T
T of F: The different concentrations of sodium and potassium between interstitial fluid and intracellular fluid are maintained by the sodium-potassium pump.
T
T of F: A cell surrounded by a hypoosmolar fluid will shrink and die as water moves out of the cell.
F: swell and burse, into
T or F: Third spacing refers to the abnormal movement of fluid into interstitial spaces.
F: spaces that normally have little or no fluid
T or F: The primary hypothalamic mechanism of water intake is thirst.
T
What is the mechanism of F/E movement: pressure exerted by proteins
oncotic pressure
What is the mechanism of F/E movement: ATP required
active transport
What is the mechanism of F/E movement: Flow of water from low-solute conentration to high-solute
osmosis
What is the mechanism of F/E movement: force exerted by a fluid
hydrostatic pressure
What is the mechanism of F/E movement: passive movement of molecules from a high concentration to a low concentration
diffusion
What is the mechanism of F/E movement: uses a carrier molecule
facilitated diffusion
What is the mechanism of F/E movement: force determined by osmolality of a fluid
osmotic pressure
