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
Aldosterone is secreted by teh adrenal cortex in response to:
loss of sodium and water
While caring for an 84-year old patient, the nurse monitors the patient’s fluid and electrolyte balance, recognizing that normal changes of aging are likely to cause
hyponatremia
While obtaiing an assessment and health history from a patient, which of the following statements by the patient will alert the nurse to a possible fluid volume excess?
I have been taking some salt tablets while working outdooors in the summer, but they sure make me thristy.
A patient at risk for hypernatremia is one who
has impaired consciousness and decreased thirst sensitivity
Sypmptoms of sodium imbalances are primarily manifested through altered
CNS functioning
alcohol withdrawal
hypophosphatemia
metabolic alkalosis
hypokalemia
parathyroidectomy
hypocalcemia
diabetes inspididus
hypernatremia
fleet enemas
hyperphosphatemia
primary polydipsia
hyponatremia
milk of magnesia use in renal failure
hypermagnesemia
early burn state
hyperkalemia
chronic alcoholism
hypocalcemia, hypomagnesemia
vitamin d deficiency
hypocalcemia
osmotic diuresis
hypernatremia
prolonged immobilization
hypercalcemia