Potassium requirements


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The major physiological role of potassium is in regulating muscle and nerve excitability.  Potassium is not conserved by the body; the kidneys excrete about 40 mEq/L per 24 hours.  Potassium is required for the synthesis of lean body tissue, about 3 mEq/g of nitrogen is needed for anabolism.


Empiric daily requirement

Adults:  60 to 200 mEq/day

Infants/children:  2 to 4 mEq/kg/day




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