QUIZ 2: FLUID VOLUME DEFICIT Flashcards
There are different fluid volume disturbances that may affect an individual.
Fluid volume disturbances
occurs when loss of ECF volume exceeds the intake of fluid.
Fluid volume deficit
refers to an isotonic volume expansion of the ECF caused by the abnormal retention of water and sodium in approximately the same proportions in which they normally exist in the ECF.
Fluid volume excess
refers to a serum sodium level that is less than 135 mEq/L
Hyponatremia
is a serum sodium level higher than 145 mEq/L.
Hypernatremia
usually indicates a deficit in total potassium stores.
Hypokalemia
refers to a potassium level greater than 5.0 mEq/L.
Hyperkalemia
CALCIUM levels below 8.6 mg/di.
Hypocalcemia
is a calcium level greater than 10.2 mg/dl.
Hypercalcemia
refers to a below-normal serum magnesium concentration.
Hypomagnesemia
is a serum phosphorus level that exceeds 4.5 mg/di in adults.
Hyperphosphatemia
Disturbances in electrolyte balances
Hyponatremia
Hypernatremia
Hypokalemia
Hyperkalemia
Hypocalcemia
Hypercalcemia
Hypomagnesemia
Hypermagnesemia
Hypophosphatemia
Hyperphosphatemia
Complications of fluid and electrolyte imbalances
DCSC
Dehydration
Cardiac overload
Siadh / syndrome of inappropriate secretion of antidiuretic hormone
Cardiac arrest
Fluid volume deficit would result in dehydration of the body tissues.
Dehydration
Fluid volume excess could result in cardiac overload if left untreated.
Cardiac overload
Siadh MEANING
syndrome of inappropriate secretion of antidiuretic hormone- is a disorder of impaired water excretion caused by the inability to suppress the secretion of antidiuretic hormone (adh).
Assessment and diagnostic findings
BUN .
Hematocrit
Physical examination
Serum electrolyte levels.
ECG.
ABG
Medical Management
Isotonic electrolyte solutions.
Accurate I&O.
Dialysis
Nutritional Therapy
Pharmacologic therapy
AVP receptor agonists.
Diuretics.
IV calcium gluconate.
Calcitonin.
is also a potent vasoconstrictor and exerts a direct constrictive action on specific smooth muscle receptors
Vasopressin
Nursing management
Close monitoring
I&O.
Daily weight. Assess the patient’s weight daily to measure any gains or losses.
Vital signs.
Physical exam. Physical exam is needed to reinforce other data about a fluid or electrolyte imbalance.
Nursing diagnosis
- Excess fluid volume related to excess fluid intake and sodium intake.
- Deficient fluid volume related to active fluid loss or failure of regulatory mechanisms.
- Imbalanced nutrition: less than body requirements related to inability to ingest food or absorb nutrients.
- Imbalanced nutrition: more than body requirements related to excessive intake.
Nursing interventions for fluid & electrolyte imbalances
Monitor turgor.
Urine concentration.
Oral and parenteral fluids.
Oral rehydration solutions.
Central nervous system changes.
Diet.
occurs when loss of extracellular fluid exceeds the intake of fluid.
Hypovolemia