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HelpTest Code UUN24 Urea Nitrogen, Timed Urine
Additional Codes
Epic EAP: LAB449
Epic Description: URINE NITROGEN, URINE, TIMED
Synonym
Urine Urea Nitrogen
UUN
24HR Urea Nitrogen Urine
Specimen Type
Urine, Timed
Specimen Required
| Collection Container | Minimum Volume | |
|---|---|---|
| Preferred |
Timed urine container with no preservative |
Entire collected volume |
Instructions for Collection and Transport
Internal samples: Indicate exact collection time. Submit entire urine collection.
Remote Locations: Measure timed urine and record volume and collection time on label. Aliquot urine into false bottom tube. Sample must remain cold at all times. Transport refrigerated on freeze packs. Refrigerate if holding overnight.
Aliquot Requirements
Urine
Optimum 3.0 mL
Minimum 2.0 mL
Performing Lab
Chemistry Lab
Assay Frequency
24 hours
Routine Turnaround Time
1 day
CSR Storage Requirements
Deliver primary container to Urinalysis or aliquot false bottom tube to automated track.
Satellite labs and Community Hospitals - measure urine; record volume and duration time; aliquot into false bottom tube.
CPT Code Information
84540
Patient Preparation
Refer to Timed Urine Collection instructions. Have patient note exact collection period on collection container.