UREA NITROGEN, 24 HOUR URINE
| Synonyms: | |
| Computer Code: | (24UUN) |
| Specimen Collection: | 24 hour urine in plain bottle. Refrigerate during collection. |
| Minimum Volume: | 1.0 mL |
| Handling Instructions for Offsite Areas: | Record total volume and collection period (hours) on requisition. Send 50 mL aliquot. Refrigerate. |
| Reference Values: | 10-20 GM/24 hr (diet dependent) |
| Lab Code: | Chemistry |
| Requisition: | URINE |
| Test Frequency: | Daily |
| Routine TAT: | 4 hrs |
| Stat TAT: | 2 hrs |
| CPT Code(s): | 84540 |
| LCD or NCD: | |
| Methodology Used: |
See Addendum XVII |