Looking to order a test?
We’ve provided helpful links to make ordering easy.Find a Requisition
All specimens should be accompanied by a requisition.Submitting Specimens
Learn about how to properly label and where to ship specimens.Order Kits and Supplies
MLabs provides all the supplies necessary for the collection of specimens.Test FAQ
Visit our provider FAQ and learn about common questions to ordering tests.
Age and sex specific reference ranges provided with report.
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Collect 24 hour urine specimen. Add 10 gm boric acid or 30 mL 6N HCl as a preservative. Mix well, measure 24 hour urine volume, aliquot into a plastic urine container and refrigerate. Record total 24 hour urine volume and collection dates/times on request form.