Specimen Requirements
Minimum of 4.0 mL urine; alternately, 4.0 mL random urine (not preferred)
Supplies for Submission
Urine Cup (1)
Specimen Collection
- During the collection period, refrigerate 24-hour urine and record the total volume.
- Mix urine and transfer 4.0 mL to a plastic aliquot tube. Label tube with two identifiers. Acceptable identifiers include patient’s name, date of birth, social security number, requisition number, and medical record number.
- Freeze - send this aliquot separately when multiple tests are ordered.
Storage Requirements
Frozen.
Specimens are stable if refrigerated for 2 weeks or frozen for 6 months.
Causes for Rejections
Specimens with the following conditions are not accepted:
- acidified
- room temperature
- submitted in preservative