Home
HelpTest Code 24URE Urea, urine, 24 hr
Laboratory Code
LAB749
Specimen Requirements
Specimen Type: 24 hr urine
Container/Tube: The following types of 24 hr urine containers are acceptable:
- No preservatives
- 3.0 g Thymol
Volume: 4000.0 mL
Minimum Volume: 20.0 mL
Collection Instructions: Collect urine in 24 hr urine container.
Please refer to NUH's Urine Preservative Guide
Specimen Stability
| Specimen Type | 24 hr urine |
|---|---|
| Ambient | 2 days |
| Refrigerate | 7 days |
| Frozen | 1 month |
Methodology
Enzymatic Assay
Days and Times Performed
24 hrs, TAT 1 day
Specimen Condition
| Haemolysis | Not applicable |
|---|---|
| Icterus | Not applicable |
| Lipaemia | Not applicable |
| Others | Not applicable |
Reference Interval
428 – 714 mmol/day
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Assessment of renal function.
Service Code
31148
LOINC Code Information
| Urine volume, total | 3167-4 |
|---|---|
| Urea, urine | 14938-5 |
| Urea, urine, 24 hr | 14939-3 |
Alias
24URE
BUN
Update
Last updated 13/03/2025