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10 Cards in this Set

  • Front
  • Back
Sodium levels
135 - 145 mEq/L
Sodium - functions
Primary determinant of ECF
causes osmosis of fluid through semi-permeable cell membranes
Control water distribution in the boby
Electromachenical fx of muscle contraction and nerve impulse transmission
Sodium regulation
Through the renal system
Hyponatremia
Sodium levels < 135 mEq/L
Hyponatremia:

causes
sodium intake deficiency
excess sodium loss - excessive water intake, sweating, vomiting, diarrhea, diuretics, burns, adrenal insufficency, lithium use
Hyponatremia:

lethal low levels
Sodium levels < 110 mEq/L
Hyponatremia:
Subjective
S&S & Nx
S&S: headache, anxiety, decrease saliva production, thirst, nausea, cramps
Hyponatremia:
skin / mucous membranes
S&S & Nx
S&S: poor skin turgor, sunken eyeballs
infant - sunken fontanels
NX: skin assessment
Hyponatremia:
neurologic
S&S & Nx
S&S: headache, lethargy, muscle weakness, muscle twitching, seizure, coma
Nx: neuro assessment
Hyponatremia:
VS
S&S & Nx
S&S: decreased BP
Orthostatic hypotension
Nx: frequent VS
caution getting up