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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.
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
24 hours urine collection. Instruct the patient to void at 8:00am and discard the specimen. Then collect all urine including the final specimen voided at the end of the 24 hour collection period, i.e., 8:00am the next morning. Screw the lid on securely. Transport the specimen promptly to the laboratory. Refrigerate during collection. Any test requiring a 24 hour urine collection with no preservative may also be run on this specimen.
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.