NUR 2290 Final Exam 2: electrolytes
Revision Questions Answered Correctly.
sodium normal range - Answer 135-145 mEq/L
sodium minimum RDA - Answer 500 mg/day
sodium sources - Answer most foods, some medications
sodium regulation - Answer kidneys, GI, skin
sodium hormonal regulation - Answer aldosterone increase retains sodium and therefore water as well
angiotensin II
ACTH and cortisol increase the production of aldosterone
sodium main function - Answer fluid regulation
sodium target organ - Answer brain
feeling woozy or "off"
hyponatremia - Answer fewer than 135mEq/L
can occur in low blood volume; hypovolemic hyponatremia (low volume and lost sodium with it)
can occur in low blood volume; dilutional hyponatremia
a low sodium diet consists of fewer than 1,500 mg of sodium per day. Low sodium diets are recommeded
in hypertension and heart failure --> pretty uncommon
, american diet has salt in everything
causes of hyponatremia - Answer -not enough sodium intake
- vomiting/diarrhea
- excess sweating
- burns, wounds
- increased ADH levels (holds onto too much fluid so sodium goes down)
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