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.
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.
48 hours refrigerated or 2 months frozen.
25 mL aliquot or total urine collection.
5 mL urine.
Incomplete collection; specimen without either preservative or refrigeration.