Renal function test.
1.0 - 1.8 g/24 hrs (8.8-15.9 mMol/24 hrs). Random urine collections are reported in units of mg/dL, for which reference values are not established.
Collect 24 hour urine specimen with no preservative. Aliquot 5 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.