PORPHOBILINOGEN, URINE QUANTITATIVE
Specimen Collection Requirements
Urine, random or 24-hour urine collection container
The most important aspect of specimen preservation is adequate refrigeration during collection, storage and transport. Aliquot from a well-mixed 24-hour collection. Record the total volume and collection time interval on the transport tube and test request form. PROTECT FROM LIGHT during collection, storage and shipment.
Ambient: Unacceptable; Refrigerated: 4 days; Frozen: 1 month
Ion Exchange Chromatography/Spectrometry
Creatinine: By report.
Thursday, January 5, 2017 03:42:22 AM