Renal function test useful in disorders of aldosterone secretion. Evaluation of electrolyte balance.
26 - 123 mEq/24 hrs (26-123 mMol/24 hrs). Random urine collections are reported in units of mmol/L, for which reference values are not established.
Collect 24 hour urine specimen with no preservative. Aliquot 10 ml into a plastic urine container and refrigerate. Record total 24 hour urine volume and collection dates/times on request form. Random urine also acceptable.