Test name is listed first, with required preservative second. Recommended collection time period is 24 hours, except for pH. Sodium, potassium, creatinine, and urea nitrogen can be performed on any routine specimen, with or without preservative.
The Total Volume is required for all 24-hour collections.
For all urine tests listed below, two 50 mL samples are preferred. If a suitable container is not available locally, contact UIDL Client Services at (1-866-844-8522) for assistance.
| Porphobilinogen, Qualitative | Random urine collection in dark plastic container or wrap yellow round bottom tube in foil to shield from light, no preservative. |