24-hour urine in a 24-hour urine container containing 10 mL 6N hydrochloric acid (HCl) as a preservative. Specimen may also be collected without a preservative if kept refrigerated during collection and transport. Note time collection started and stopped.
Handling:
Send complete collection in original container. If submitting aliquot, mix total collection well, then measure and record total volume before pouring off into a sterile container. Refrigerate. Refrigerate. pH will be adjusted to <3.0 if necessary after receipt at performing laboratory.
Stability:
48 hours refrigerated or 2 months frozen.
Standard Volume:
25 mL aliquot or total urine collection.
Minimum Volume:
5 mL urine.
Transport:
Refrigerated.
Rejection Criteria:
Incomplete collection; specimen without either preservative or refrigeration.