Sodium levels are affected by ADH (hypothalamus), aldosterone (renin-angiotensin-aldosterone axis), glucocorticoids and mineralocorticoids (pituitary axis). Potassium is affected by aldosterone, steroids, and insulin. Calcium levels are increased as PTH is released.
Electrolytes and Related Hormones
- Sodium: ADH (retains fluid), glucocorticoids (cortisol) and mineralocorticoids (aldosterone) both retain Na
- Potassium: aldosterone (excretes K), gluco- and mineralocorticoids (excrete K), beta-adrenergic agonists (decrease K), insulin (decreases serum K)
- Calcium: PTH (increases Ca++)
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